This book presents a general explanation of how states develop their foreign policy. The theory stands in contrast to most approaches--which assume that states want to maximize security--by assuming that states pursue two things, or goods, through their foreign policy: change and maintenance. States, in other words, try both to change aspects of the international status quo that they don't like and maintain those aspects they do like. A state's ability to do so is largely a function of its relative capability, and since national capability is finite, a state must make trade-offs between...