Question

The policy of using troops only when it is vital to the nation's overall well-being, with no definite goal is called the

Answer 1

The correct option is A
  the doctrine denoted a nation should exhaust all political, economic, and diplomatic means which, only if all were futile, would result in the condition that the nation should resort to military force. This should be done concomitant with the overview of the nation  strategic interests and achievable goals, as well as entry and exit strategy.
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