Answer:
In 1958, president Eisenhower sent 5000 troops to Lebanon to stabilize its pro-western government.
Step-by-step explanation:
It was known as the Lebanon crisis and was a political crisis that lasted three months and included U.S. military troops' intervention.
It was caused because of political and religious crises that threatened to start a civil war. All in the context of the Cold War where Lebanon was a pro-western country surrounded by pro-Soviets regimes.
I hope this answer helps you.