Beetle Bailey

Gen. Halftrack and Pvt. Bailey are standing beside a cannon, near some targets.
"Why aren't you firing ?" asks Gen. Halftrack.
"I'm not sure how far away the target is" replies Pvt. Bailey.
"If I was on the golf course" says Halftrack, "I'd say you need a 3-wood"

Neither of them seems to have noticed that the cannon is facing the wrong direction.

Comic