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.