I love the last quatrain of "Letter Composed During a Lull in the Fighting," by Kevin C. Powers (from the Feb. 2009 issue of Poetry):

I tell her how Pvt. Bartle says, offhand,
that war is just us
making little pieces of metal
pass through each other.

A more deadpan version of Brian Turner's address to the bullet that might kill him, "Here, Bullet."