The United States engaged in "hostilities" under War Powers  There are multiple arguments indicating why the U.S. might be engaged in hostilities under the War Powers Act, enough so that this single argument could make an entire two person case.  The U.S. has engaged in sustained hostilities in Libya which have resulted in regime change within the country. The President himself admits that causing regime change would be unjustifiable in his speech justifying the war by pledging that “broadening our military mission to include regime change would be a mistake.”2 However, regime change was the result of the mission and NATO and U.S. played a significant role in facilitating that change.  Secondly, the War Powers act covers the U.S. fighting in a supportive role in wars. "For purposes of this chapter, the term 'introduction of United States Armed Forces' includes the assignment of members of such armed forces to command, coordinate, participate in the movement of, or accompany the regular or irregular military forces of any foreign country or government when such military forces are engaged, or there exists an imminent threat that such forces will become engaged, in hostilities.”3 Hence the U.S. is acting in violation of this condition.  Further, troops do not need to be on the ground to call the Libyan engagement hostilities. U.S. men and women have firstly died in the conflict, but secondly if troops were needed on the ground for a war, a U.S. president could potentially fire a thousand missiles at a country without the engagement being considered a war.  Further, even though the U.S. gave powers to NATO, it maintained a lead role in this coalition force. As such, the engagement should still be subject to U.S. laws and rules.  Finally, the sheer cost of the engagement to the U.S. taxpayer implies that it should be considered a war. The cost of the war has been more than $1 million per day.1  Greenwald, Glenn. “The illegal war in Libya.” Salon. 19/05/2011  BBC News, ‘Libya: Obama says US intervention will be limited’, 29 March 2011,  United States Congress, 50 USC CHAPTER 33 - WAR POWERS RESOLUTION, 7 January 2011,