Reddit reviews Lincoln's Code: The Laws of War in American History

With phrases like "all is fair in love and war" we don't tend to think about the rules of war and engagement, but there are actually many. It is American policy that combat / military actions during wartime owe no reparations.

That's obviously a loaded definition since the definition of "war" has expanded and greyed... and it's become more difficult to determine what constitutes a "combat action" but for more clear examples:

• If troops blow up your farmhouse because enemy troops are occupying it as a base, in an already declared war, no reparations will be paid.
  
  
• If troops run over your livestock (or worse) during R&R, even in a declared war, reparations will be paid.
  
  In this case, Tony is technically performing a peace-keeping / policing function, but the conflict has easily arguably escalated to a "war" against an non-sovereign entity (like non-nation terrorists, rebels, or insurgents)... that's the title of the film after all... so the issue could be debated back and forth.
  
  If Tony fought it, his lawyers could make make his case for no reparations, but since Tony's entire intention is placating the powers that be, he gladly accepts responsibility for his team's actions.