The cause of the war was the deposition of James II as King of the Three Kingdoms in the "Glorious Revolution" of 1688. James was supported by the mostly Catholic "Jacobites" in Ireland and hoped to use the country as a base to regain his Three Kingdoms. He was given military support by France to this end. For this reason, the War became part of a wider European conflict known as the Nine Years' War (or War of the Grand Alliance). Some Protestants of the established Church in Ireland also fought on the side of King James.