Doves hawks wolves chickens supported u. s. involvement in vietnam and thought that the u. s. should do whatever was necessary to achieve victory.

It would be the War "Hawks" who supported U.S. involvement in Vietnam and thought that the U.S. should do whatever was necessary to achieve victory, since this is a common phrase for a group of people who advocate for a nation to go to war. 

Both countries had to aprove annexation.

Iraq because its lack of policing and government concern