It's their war; they have to win it.

The United States is offering more military help to Iraq, including special forces units and armed helicopter support, but the Iraqi government isn't accepting. This reminds me of President Kennedy's comments in a television interview three weeks before his assassination. Asked about greater U.S. involvement in Vietnam, Kennedy said, "In the final analysis, it is their war. They are the ones who have to win it or lose it."

Don't the many Republican presidential candidates calling for greater U.S. troop presence and operations in Iraq realize that we can't act or succeed without the agreement of the Iraqi government?  As U.S. commander Lt, Gen. Sean MacFarland told reporters, 

“This is a very complex environment,” General MacFarland said, somewhat philosophically. “It is kind of hard to inflict support on somebody.”

"Inflicting support" is not a way to win a war.