Did You Know? Peace was declared on Apr. 17, 1986 between the Netherlands and the Isles of Scilly (off the Southwest coast of England), ending a “war” that had been going on since Mar. 30, 1651. It is said to have been extended by the lack of a peace treaty for 335 years without a single shot being fired and no casualties on either side. Sounds like a pretty Scilly affair to me. LEARN MORE.