Yes, war decisions are already sparking lawsuits, and the trend is accelerating. From constitutional challenges to presidential military strikes to class actions on behalf of veterans harmed by wartime policies, the intersection of armed conflict and civil litigation has never been more active. In March 2026, the ACLU condemned President Trump’s military strikes on Iran as unconstitutional, demanding Congress block further military action unless it formally declares war or authorizes the use of force. That same month, a federal court saw Anthropic, the AI company valued at $380 billion, sue the Pentagon over canceled government contracts, calling the administration’s actions “unprecedented and unlawful.” These are not hypothetical scenarios. They are live cases working through the courts right now.
The legal fallout from war decisions cuts across multiple fronts. Veterans are filing class actions over burn pit exposure and disability rating changes. Members of Congress are reviving war powers litigation that dates back to 1973. Nations are suing each other for Cold War-era crimes. And a wiretapping law written during the Cold War is fueling a surge of privacy lawsuits against modern tech companies.
Table of Contents
- How Do Presidential War Decisions Lead to Constitutional Lawsuits?
- Veterans and Military Class Actions Tied to War Decisions
- VA Policy Changes That Trigger Federal Lawsuits
- Lawfare and the Use of Legal Systems as Weapons of War
- Cold War Laws Creating Modern Consumer Lawsuits
- How International War Crimes Litigation Affects Domestic Law
- What Comes Next for War-Related Litigation
- Frequently Asked Questions
How Do Presidential War Decisions Lead to Constitutional Lawsuits?
The question of who gets to decide when America goes to war has been legally contested for decades, but the current moment is particularly heated. The War Powers Resolution of 1973 was supposed to check presidential authority by requiring congressional approval for sustained military operations. In practice, presidents from both parties have stretched that authority, and Congress has repeatedly gone to court over it. The House voted in March 2026 on whether to constrain Trump’s war authority after the Senate rejected a war powers resolution by a vote of 47 to 53, largely along party lines.
SCOTUSblog published an analysis in March 2026 titled “Abandoning the separation of powers in times of war,” examining how wartime decisions erode constitutional checks and generate legal challenges. The pattern is consistent: a president orders military action, members of Congress argue they were cut out of the decision, and lawsuits follow. These cases rarely produce sweeping rulings because courts tend to treat war powers disputes as political questions outside their jurisdiction. But they do shape public debate and occasionally force the executive branch to seek authorization it might otherwise skip. For anyone watching these cases, the important limitation is that courts have historically been reluctant to second-guess a sitting president on active military operations, which means legal victories for plaintiffs tend to come after the fact, if at all.
Veterans and Military Class Actions Tied to War Decisions
Some of the most consequential lawsuits tied to war decisions involve the people who actually fought. The burn pits settlement reached in March 2026 in *Smoke v. Driscoll* is a prime example. The Army agreed to define open-air burn pits in combat zones as “instrumentalities of war” for disability determinations under the PACT Act. This settlement, brought by the National Veterans Legal Services Program and Sidley Austin LLP, directly changes how the military classifies wartime hazards for purposes of veterans’ benefits.
Meanwhile, the 3M Combat Arms Earplugs Settlement Program has reached a major milestone. As of February 20, 2026, 100 percent of Early Payment Program claimants have been paid, with over $3.06 billion distributed to veterans and service members. That settlement arose from allegations that 3M supplied defective earplugs to the military, exposing troops to hearing damage during training and combat. However, veterans who did not file claims during the designated window or who were not part of the certified class may have limited options now. The program’s success does not guarantee that future military equipment lawsuits will follow the same template, particularly if manufacturers challenge class certification more aggressively.
VA Policy Changes That Trigger Federal Lawsuits
Not all war-related lawsuits involve combat. Some target the bureaucratic decisions made long after soldiers come home. In February 2026, a federal lawsuit challenged a VA rule published on February 17 that would require disability ratings to reflect how veterans function while on medication rather than the severity of their underlying condition. The practical impact was enormous: a veteran with a serious condition that is partially managed by daily medication could see their disability rating, and their monthly compensation, slashed. The backlash was swift.
VA Secretary Doug Collins halted enforcement of the rule within 48 hours of the fierce opposition it generated. But the lawsuit itself continues, because veterans’ advocates want a court ruling that prevents the VA from attempting this approach again. Separately, Hagens Berman filed suit against Veterans United Home Loans on February 18, 2026, in the U.S. District Court for the Western District of Missouri, alleging the lender falsely presented itself as part of the VA and misled veteran homebuyers. That case is a reminder that wartime service creates a consumer identity that companies sometimes exploit, and the legal system is one of the few tools veterans have to push back.
Lawfare and the Use of Legal Systems as Weapons of War
The concept of “lawfare,” using legal systems as instruments of geopolitical conflict, has moved from academic theory to courtroom reality. Poland announced in February 2026 that it is preparing a lawsuit against Russia to recover damages from Cold War-era historical crimes during the Polish People’s Republic era. The effort was commissioned by Prime Minister Donald Tusk and represents an attempt to use international law to hold a former occupying power accountable decades after the fact. The tradeoff is obvious: even if Poland wins a judgment, enforcing it against Russia would be nearly impossible under current geopolitical conditions. On the technology front, U.S.
Tech companies have accused Chinese AI firms of stealing billions in research, with cases escalating before the International Court of Justice. This “AI Cold War” litigation reflects a broader pattern where trade disputes and national security concerns are channeled through legal proceedings rather than traditional diplomacy. The Anthropic lawsuit against the Department of Defense, filed in the U.S. District Court for the Northern District of California in March 2026, adds another layer. With hundreds of millions of dollars in government contracts canceled or in jeopardy, the case tests whether the government can unilaterally cut ties with a technology provider during a period of heightened national security anxiety. For companies doing business with the Pentagon, this lawsuit is a warning that war-adjacent policy shifts can wipe out revenue overnight.
Cold War Laws Creating Modern Consumer Lawsuits
One of the more unexpected consequences of war decisions is how laws written for one era get repurposed in another. The California Invasion of Privacy Act, or CIPA, was enacted during the Cold War specifically to combat wiretapping. It was designed for a world of telephone surveillance and espionage. In 2026, it is fueling a surge of lawsuits against companies for using website tracking technologies, including cookies, pixels, session-replay tools, and chatbots, that plaintiffs argue intercept online conversations without consent.
The legal theory is that if a chatbot or tracking pixel captures what a user types or clicks in real time, it functions like a wiretap under CIPA’s broad language. Companies that assumed their standard cookie banners and privacy policies provided adequate protection are discovering otherwise. The limitation here is significant: CIPA is a California state law, so its reach is geographically bounded. But because so many tech companies are headquartered in California or serve California residents, the practical impact extends nationwide. Businesses should be aware that Cold War-era statutes may impose obligations that modern privacy frameworks like the CCPA do not, and that plaintiffs’ attorneys are actively mining these older laws for new causes of action.
How International War Crimes Litigation Affects Domestic Law
The precedents set in international war crimes tribunals and cross-border lawsuits do not stay confined to foreign policy. When courts establish that nations or their agents can be held liable for wartime conduct, those principles filter into domestic legal arguments. Poland’s planned lawsuit against Russia, for instance, could influence how U.S.
Courts think about government accountability for historical military decisions, from Agent Orange exposure to nuclear testing fallout on civilian populations. Veterans’ advocates have long argued that the same legal reasoning used to hold foreign governments accountable should apply when the U.S. government’s own wartime decisions cause harm to its service members.
What Comes Next for War-Related Litigation
The trajectory is clear: war-related lawsuits are expanding in scope, dollar amounts, and legal creativity. The burn pits settlement redefines what counts as a wartime hazard. The AI Cold War litigation tests how intellectual property law functions when national security is invoked.
CIPA lawsuits demonstrate that the legal aftershocks of war decisions can persist for decades, long after the original conflict has ended. Looking ahead, expect more friction between executive military authority and congressional oversight, more veterans challenging VA policy through the courts, and more companies caught in the crossfire of geopolitical legal battles. The courts are becoming a primary venue where the consequences of war decisions are adjudicated, not just on the battlefield or in diplomatic back channels, but in motions, depositions, and settlement agreements.
Frequently Asked Questions
Can individual citizens sue the president for starting a war without congressional approval?
Individual standing to challenge war powers decisions is extremely limited. Courts have generally held that war powers disputes are political questions best resolved between the executive and legislative branches. Members of Congress have filed suit multiple times since the War Powers Resolution of 1973, but individual citizens typically lack the direct injury required to establish legal standing.
Is the 3M earplug settlement still accepting new claims?
As of February 2026, 100 percent of Early Payment Program claimants have been paid, with over $3.06 billion distributed. The claim filing window has specific deadlines, and veterans who missed them may have limited options. Check the official Combat Arms Earplugs Settlement Program website for current status and any remaining deadlines.
What happened with the VA disability rating rule change?
A VA rule published on February 17, 2026, would have required disability ratings to reflect how veterans function on medication rather than the severity of the underlying condition. After fierce opposition and a federal lawsuit, VA Secretary Doug Collins halted enforcement within 48 hours. The litigation continues to prevent the VA from reinstating the rule.
Can companies be sued under Cold War-era wiretapping laws for using website cookies?
Yes. The California Invasion of Privacy Act, enacted during the Cold War, is being used in a growing number of lawsuits against companies that use cookies, tracking pixels, session-replay tools, and chatbots. Plaintiffs argue these technologies intercept online communications without consent. However, CIPA is a California state law, so its direct applicability depends on jurisdictional factors.
What is the Anthropic lawsuit against the Pentagon about?
In March 2026, Anthropic sued the Department of Defense in the U.S. District Court for the Northern District of California, alleging that the administration’s cancellation of government contracts was “unprecedented and unlawful.” Hundreds of millions of dollars in contracts were canceled or put in jeopardy, raising questions about how the government can terminate agreements with technology providers.