Operations designed to demonstrate U.S. resolve and involve the appearance of a credible military force in an attempt to defuse a situation that, if allowed to continue, may be detrimental to U.S. interests are known as
Based on the information provided within the question it can be said that this type of operation is known as a show of force. Like mentioned in the question this is a specific military operation used by the United States, in which they use credible military forces to either warn or intimidate an opponent in order to diffuse a situation that may otherwise escalate and cause serious problems.
