The Obama Administration has initiated a bomb and land-based missile attack against Syrian territory without permission from the Syrian government, without a request for assistance from the Syrian government, and without a UN Security Council resolution. 

This is an act of US aggression against a foreign nation and a violation of international law.

The attacks were also made with no declaration of war or authorization from the US Congress. This is an illegal act according to US law, a violation of the US Constitution.

The 2001 Authorization for the Use of Force against the perpetrators of 9/11 attacks could not be legally valid for Obama’s attacks on ISIS in Syria because ISIS is not part of al-Qaeda and in fact did not exist at the time of the 2001 attacks.