The reason I believe this is because the United States Constitution Article One, Section Eight states that "Congress shall have the power to declare war." I also believe that the Constitution grants rights to different branches of the government and anything that is not specifically highlighted as a right of the government is illegal. Example: Constitution says "Congress can give red hats to monkeys" it would be illegal for Congress to give blue hats to monkeys, the Senate to give red hats to horses, or the President to give red hats to monkeys. This line of thought leads me to believe that the President ordering acts of war on a country that Congress has not declared war on is illegal and a war crime. If Nixon was alive I would also argue he should be charged. Change my view!