When he was elected in 1980, Ronald Reagan warned that the U.S. was facing a security threat from the Soviet Union so great that only a massive infusion of funds could possibly check it. In the ensuing years, he and Defense Secretary Caspar Weinberger saw to it that a fundamental component of the Reagan Revolution was a military buildup unrivaled in peacetime history. Suddenly, because of exigencies on the home front, that is coming to a halt. Reagan's surprising acquiescence raises a critical question: Will the budget freeze unleash all the dangers that he has warned against?
"This is not encouraging...