Check out page 17 of Time magazine (May 28, 2007)

“co-belligerent”

DEFINITION \ko-beh-lij-er-int\ n:  Unlikely bedfellows joined for political purposes

CONTEXT  Parliamentarian William Wilberforce employed the term in 19th century England to describe his abolitionist allies.  The Allies became co-belligerents with former enemies in the later stages of WW II.

USAGE  It’s a hit with Evangelicals.  Megachurch pastor Rick Warren claims he’s a co-belligerent with feminists on issues like pornography.  And it’s an emerging descriptor for the wary but genuine approval that Christian conservatives have given to Mitt Romney, below, despite their differences with Mormons.