The best general guide for those who want to understand what is at stake in the debate regarding American neutrality policies. This debate now promises to continue for some time, as the newly adopted legislation is only temporary, and the whole matter must again come up for review after the elections. An authoritative review is here provided of the country's past experience in the face of general European wars. The many proposals now advanced for safeguarding American neutrality are then examined one by one in the light of that experience and in the light of the national interest. Common sense and practicality pervade the whole discussion. The key documents are provided in the appendix.