The war pitted two of South America's poorest countries, both having previously lost territories to neighbors in wars during the 19th century.

This war pitted the nobles of the north of France against those of the south.

Similar to other range wars in the Old West, the war pitted cattlemen against sheepherders.

The war pitted a reformed Austrian army against a collection of French veterans and conscripts.

The war against international terrorism has pitted us against a new kind of enemy that wages terror in new and unconventional ways.

It obscures the central fact that a civil war within Islam is pitting zealous fanatics against increasingly intimidated moderates.

It is the epicenter of a separatist war pitting impoverished nomads against one of the biggest armies in Africa.

The war, which began in 1960, pitted a rightist military-controlled Government against a classic Latin American left-wing insurgency.

(That war pitted the old-fashioned sound-it-out approach against a newer, "whole language" method emphasizing the story over the syllables.)

The ensuing civil war pitted Cleopatra's city of Alexandria against the rest of the country, who supported Physcon.