All's fair in love and war

People in love and soldiers in wartime are not bound by the rules of fair play.

notes for All's fair in love and war

This proverb is frequently used when two people are contending for the love of a third.

Idioms and Phrases with all's fair in love and war

all's fair in love and war

Any conduct is permissible in certain circumstances, as in Of course he called her—all's fair in love and war. This maxim, stated in various forms from 1579 on, today sometimes appears altered by an addition or substitution, as in All's fair in love and the World Series, or All's fair in love and war and an election year.