President Obama is intent on punishing Syria for its use of chemical weapons and has announced he will do so with or without congressional approval. If congress does not authorize military action in Syria, this would be the second (major) time that Obama has used military force without congressional approval, the first being the Libya mission in 2011.
A brief timeline of U.S. military activity since World War 2 as summarized by the WSJ is below, with each event denoted by the president in office, the political makeup of congress, and the congressional action.
Via: floatingpath.com