Abstract
A great power in a dispute with a minor state does not require the weight which a coalition with a peer would provide, and may require peer toleration in order to throw its own weight around. An alliance with the rival is a prudent step fora predatory great power. This article examines nondefense alliances among the European great powers and activist wars with minor states during 1815–1939. Weak commitments favour activist war and strong ones induce such warfare. The strength of the commitment varies with the geopolitical location of the target.