Demetrio Perez Jr. joined the Marine Corps Reserve because he wanted job training. Warren Davis signed up as a Navy reservist to help support his wife and new baby. They never dreamed there would be a war. Now they want out.

Perez, of Jacksonville, Fla., and Davis, of Renton, Wash., both 21, are among an estimated 300 reservists called to active duty who are resisting deployment to the Persian Gulf, according to anti-war groups that are assisting them."These are people we consider to have made a serious decision to say, `I don't believe in it, and I'm not going to do it,' " said Todd Ensign, director of Citizen Soldier, a New York-based group that advocates peace and non-intervention among service personnel.

A military spokesman says if they didn't know what they were getting into when they signed up, they should have.

"I don't know what goes through their minds when they enlist. But from the documents that we utilize and the procedures that they go through, it would be very difficult, I would think, for a person to be misled as to what it means to be a soldier," said Maj. Thomas H. Leahy of the Army Recruiting Command at Fort Sheridan, Ill.