Froschmäusekrieg is german for "war between the frogs and the
mice" from a poem attributed to
Homer (Batrachomyomachia), which is a
satire about the pointlessness of war or feuding.
Froschmäusekrieg was used by Helen Dukas (Einstein's secretary and literary executor) to describe the long and bitter dispute between the
School of
Math and the
School of Social Science at the Institute for Advanced Study. A good word to know when facing such a dispute.