Er...no, zeuhl, the Glorious Revolution didn't involve years of campaigning, though it well might have done if James II had the loyal forces and the stubborness of Charles I. There are, however, plenty of examples in history of foreign forces, aided by local people, conducting campaigns against other local people, and for years . Curiously, the foreign forces seem to be there in the interests of their own goverment more than those of any local people, but that may be me being too cynical !