Presidential Wars With No Congressional Declarations
Under the definitions of war and co-belligerency referenced above, the United States is fighting nine known presidential wars with no congressional declarations in violation of the Declare War Clause. In none of these conflicts has Congress declared war or otherwise by statute or joint resolution made a decision to change the condition of the nation from a state of peace to war.
Syria
The United States has conducted more than 7,000 airstrikes on Syrian territory without a congressional declaration of war. They airstrikes are scheduled to continue indefinitely. These acts of war were by the United States against Syria were not in self-defense. Syria has never threatened aggression against the United States nor declared war against us. In 2013, Congress was unconvinced by the White House that Syria then posed a sufficient threat to the United States to justify war or its authorization. The United States military is operating under the laws of war in Syria, and doing things there which would be deemed war if done in the United States by a foreign nation or entity.