Yes, war decisions can and do lead to lawsuits, though the legal outcomes depend heavily on who is suing, who is being sued, and under what legal framework. The United States has a long history of litigation arising from military actions, ranging from constitutional challenges to presidential war powers, to tort claims against defense contractors, to class action settlements on behalf of veterans denied promised benefits. While no sitting president has ever been held legally accountable in court for waging an unconstitutional war, other avenues of legal action have produced real results for plaintiffs, including a unanimous Supreme Court ruling in June 2025 that secured retroactive compensation for over 9,000 combat-disabled veterans. The legal landscape surrounding war-related lawsuits is shifting in meaningful ways.
The Supreme Court is currently weighing whether military contractors can be sued for wartime negligence in Hencely v. Fluor, a case that could redefine liability for private companies operating in combat zones. Meanwhile, the February 2026 U.S. and Israeli military strikes against Iran have reignited fierce debate over whether a president can launch large-scale military operations without congressional authorization.
Table of Contents
- Can Citizens Sue Over Unconstitutional War Decisions?
- Defense Contractor Lawsuits and the Limits of Wartime Immunity
- Veteran Class Actions That Have Already Produced Results
- Understanding the Legal Doctrines That Block or Enable War-Related Claims
- Why Most War Powers Challenges Fail in Court
- The Iran Strikes and the Current Legal Debate
- What the Future Holds for War-Related Litigation
- Frequently Asked Questions
Can Citizens Sue Over Unconstitutional War Decisions?
In theory, yes. In practice, courts have almost universally refused to rule on the constitutionality of military action. Article I, Section 8, Clause 11 of the Constitution grants Congress the power to declare war, and the 1973 War Powers Resolution further requires congressional approval for sustained military operations. When a president orders strikes without that authorization, as multiple legal scholars argue happened with the February 28, 2026, strikes against Iran, there is a genuine constitutional violation. Yale international law professor Oona Hathaway stated plainly that “the strikes on Iran are blatantly illegal,” and multiple constitutional scholars said there was “no indication” trump had unilateral authority to order the campaign. But having a valid legal argument is not the same as having a viable lawsuit.
During the Vietnam War, dozens of federal lawsuits challenged the conflict’s constitutionality, and courts dismissed virtually all of them under the “political question” doctrine, which holds that certain disputes between the executive and legislative branches are not for judges to resolve. No U.S. president has ever been held legally accountable in court for waging an unconstitutional war. The Senate had a chance to act as a check on the Iran strikes through a War Powers Resolution vote, but the motion to discharge the resolution from the Senate Foreign Relations Committee failed 47-53, leaving no congressional constraint on the military action. The frustrating reality for those who believe war powers violations should be justiciable is that the courts have consistently treated these cases as belonging to the political branches, not the judiciary. That does not mean war decisions are entirely beyond legal challenge. It means the lawsuits that succeed tend to come from different angles: contractor negligence, veterans’ benefits disputes, and claims under specific statutes like the Anti-Terrorism Act.
Defense Contractor Lawsuits and the Limits of Wartime Immunity
One of the most consequential war-related cases currently before the courts involves not a government official but a private military contractor. The Supreme Court heard oral arguments on November 3, 2025, in Hencely v. Fluor, which asks whether defense contractor Fluor Corp. can be sued for negligence after a 2016 suicide bombing at Bagram Air Base in Afghanistan killed three soldiers and two Fluor employees. The Army’s own investigation found that Fluor violated its contract by giving the bomber, Ahmad Nayeb, tools used in the attack and by failing to monitor his movements on the base. The central legal question is whether the “combatant-activities exception” to the Federal Tort Claims Act shields contractors from state tort claims even when those contractors breached their own contracts and violated military orders.
A majority of the justices appeared skeptical that the plaintiffs could overcome the typical contractor immunity applied in wartime litigation. However, Justices Kagan and Sotomayor pressed on a critical distinction: should a contractor that actively violated the terms of its agreement with the military still receive the same legal protections as one that followed orders faithfully? This case matters far beyond its specific facts. If the Court rules that contractors retain immunity even when they breach their contracts, it effectively creates a zone of legal impunity for private companies operating in war zones. If it carves out an exception for contract breaches, it opens the door to a new category of wartime litigation. Either way, the decision will shape the legal landscape for the thousands of private contractors who have operated alongside U.S. forces in Iraq, Afghanistan, and other theaters since 2001.
Veteran Class Actions That Have Already Produced Results
While constitutional war powers challenges have largely failed in court, lawsuits brought by veterans over benefits and disability classifications have a much stronger track record. On June 12, 2025, the Supreme Court ruled unanimously in Soto v. United States in favor of more than 9,000 combat-disabled veterans who had been wrongfully denied full retroactive Combat-Related Special Compensation. The Department of Defense had been limiting CRSC effective dates to six years before the date of application, effectively shortchanging veterans who were entitled to compensation going back further. The Court rejected that limitation entirely. More recently, on March 6, 2026, a settlement was reached in Smoke v. Driscoll that directly addresses one of the most contentious issues in military disability law.
Under the agreement, the Army will reclassify disabilities from burn pit exposure as “instrumentalities of war,” granting them combat-related designation. The Army has also agreed to review all veterans retired for burn pit disabilities under the PACT Act. This settlement is significant because combat-related designation affects the amount of compensation veterans receive and whether certain tax exemptions apply to their disability pay. A separate ongoing lawsuit under the Anti-Terrorism Act targets Iranian-sponsored terrorists and the banks that funded them on behalf of U.S. veterans, service members, and contractors who were injured between May 2003 and 2011, as well as families of those killed during that period. This case takes a different approach by going after the financial infrastructure that supported attacks on American forces in Iraq rather than suing the U.S. government itself.
Understanding the Legal Doctrines That Block or Enable War-Related Claims
Anyone considering a war-related lawsuit needs to understand the legal doctrines that determine whether a case can even get through the courthouse door. The most significant barrier is sovereign immunity, the principle that the U.S. government cannot be sued unless it explicitly waives that protection. The Federal Tort Claims Act provides a partial waiver, allowing personal injury and wrongful death claims in certain circumstances, but it contains broad exceptions for wartime and national security actions that effectively shield most combat-related decisions from judicial review. For active-duty service members, the obstacle is even more formidable.
The Feres Doctrine, established by the Supreme Court in 1950, bars military personnel from suing the government for injuries that are “incident to service.” This means a soldier injured by a defective weapon, exposed to toxic substances on base, or harmed by a commanding officer’s negligence generally cannot bring a tort claim against the government. Recent cases have chipped away at the edges of Feres, but its core holding remains intact. The tradeoff here is that military personnel receive certain guaranteed benefits through the VA system in exchange for this limitation on their right to sue, though many veterans and legal advocates argue that tradeoff is deeply unfair. The international legal framework offers a different path. The Geneva Conventions and the International Criminal Court can hold military personnel accountable for war crimes, though the United States is not a party to the ICC and has historically resisted its jurisdiction. For most Americans affected by war decisions, the practical options are domestic: veterans’ benefits claims, contractor liability suits, and statutory causes of action like the Anti-Terrorism Act.
Why Most War Powers Challenges Fail in Court
The political question doctrine is the single biggest reason that lawsuits challenging the legality of a war almost never succeed. Courts have consistently held that disputes over whether a military action was properly authorized are best resolved by the political branches, Congress and the President, rather than by judges. This is not because the constitutional questions are unimportant. It is because courts view themselves as institutionally ill-equipped to second-guess real-time military and foreign policy decisions. There is a deeper problem as well. Even when a court might be willing to hear a war powers case, the question of standing, whether the plaintiff has suffered a concrete and particularized injury, often proves fatal.
A taxpayer who objects to military spending generally lacks standing to challenge a war. A member of Congress who voted against an authorization might have a stronger claim, but courts have been reluctant to wade into inter-branch disputes. The cases that do survive tend to involve plaintiffs with direct, personal injuries: a veteran denied benefits, a contractor’s employee killed by negligence, a family member seeking wrongful death damages. The limitation here is stark. The most consequential war decisions, whether to launch strikes, how to conduct a campaign, which targets to hit, are the decisions least likely to face meaningful judicial review. Legal accountability for war decisions, when it happens at all, tends to come after the fact and through indirect channels rather than through a direct challenge to the decision itself.
The Iran Strikes and the Current Legal Debate
The February 2026 U.S. and Israeli strikes against Iran, which killed Supreme Leader Ayatollah Ali Khamenei and targeted Iran’s military and nuclear capabilities, have become the latest flashpoint in the war powers debate. President Trump characterized the campaign as “massive and ongoing,” language that legal experts seized on as evidence that the strikes constituted the kind of sustained military action requiring congressional approval under both the Constitution and the War Powers Resolution.
Multiple constitutional scholars stated publicly that there was no legal basis for the President to order the strikes unilaterally. The Senate’s failure to advance a War Powers Resolution, with the discharge motion falling 47-53, effectively left the question unresolved through the political process. Whether any legal challenge will emerge from these strikes remains to be seen, but history suggests that even if lawsuits are filed, courts will likely decline to rule on the merits. The more probable avenue for legal consequences will come through downstream litigation: contractor disputes, veterans’ claims, and potential international proceedings.
What the Future Holds for War-Related Litigation
The trend lines in war-related litigation point in two directions simultaneously. On one hand, courts remain deeply reluctant to adjudicate the legality of war itself. The political question doctrine shows no signs of weakening, and the Feres Doctrine, despite persistent criticism, continues to block many service member claims. On the other hand, the edges of wartime immunity are being tested in ways that could expand legal accountability. The Hencely v. Fluor case at the Supreme Court could open new avenues for suing military contractors.
The Smoke v. Driscoll settlement signals that the military is willing to reclassify certain injuries under pressure from litigation. And the success of the Soto class action demonstrates that veterans can win significant victories when the legal framework allows for it. For individuals affected by war decisions, whether veterans, contractors, or civilian family members, the practical takeaway is that the type of claim matters enormously. Broad constitutional challenges to war itself face near-impossible odds. Specific claims about benefits, contractor negligence, or statutory violations have a realistic chance of success. The law may not be able to prevent a war, but it can sometimes force accountability for how that war is waged and how those who fought it are treated afterward.
Frequently Asked Questions
Can I sue the U.S. government for injuries sustained during military service?
Generally, no. The Feres Doctrine bars active-duty service members from suing the government for injuries “incident to service.” However, there are exceptions, particularly for veterans’ benefits claims and situations where injuries resulted from contractor negligence rather than direct government action. Recent cases like Soto v. United States have also shown that class actions challenging how benefits are calculated can succeed.
Has any president ever been sued for starting an unconstitutional war?
While lawsuits have been filed, no U.S. president has ever been held legally accountable in court for waging an unconstitutional war. During the Vietnam War, dozens of federal cases challenged the conflict’s legality, but courts consistently dismissed them under the political question doctrine. The same pattern has continued through every subsequent military action.
What is the combatant-activities exception, and how does it affect lawsuits?
The combatant-activities exception is a provision in the Federal Tort Claims Act that shields certain wartime activities from tort liability. It is currently at the center of the Hencely v. Fluor Supreme Court case, which will determine whether this exception also protects private military contractors who violated their own contracts and military orders.
Are there any active class action settlements for veterans I should know about?
Yes. The Smoke v. Driscoll settlement reached in March 2026 requires the Army to reclassify burn pit exposure disabilities as combat-related and review affected veterans’ cases under the PACT Act. Additionally, veterans and contractors injured in Iraq between May 2003 and 2011 may be eligible for compensation through the Anti-Terrorism Act lawsuit targeting Iranian-sponsored terrorism financiers.
Can military contractors be sued for negligence in a war zone?
This is exactly the question the Supreme Court is deciding in Hencely v. Fluor. Currently, contractors enjoy significant immunity for activities in combat zones, but the outcome of this case could carve out exceptions for contractors who breach their contracts or violate military orders.
What role does international law play in holding military decision-makers accountable?
The Geneva Conventions and the International Criminal Court can hold individuals accountable for war crimes. However, the United States is not a party to the ICC and has historically resisted its jurisdiction, making international legal accountability for U.S. war decisions largely theoretical in practice.