Observe the Fire on the Opposite Shore
Delay entering the field of battle until all the other players have become exhausted fighting amongst themselves. Then go in full strength and pick up the pieces.
Hojo Regency Japan
In 1583 the great General Toyotomi Hideyoshi was positioning his forces against Akechi Mitsuhide in what would be the battle of Yamazaki. Shortly after the battle had engaged, Tsetsui Junkeian, an ally of Mitsuhide, arrived on the scene. Impressed by the superior forces of Hideyoshi, he refused to attack but instead ordered his men to line up in battle formation on a hill above the Hora-ga-toge pass where he could watch the battle before deciding which general to side with. Seeing Hideyoshi gaining the advantage he betrayed his ally and sent his troops over to Hideyoshi's side. This incident was never forgotten and henceforth the Japanese equivalent of `Watching the fire...' is known as `To wait at Hora-ga-toge.'