Operation Fluid Drive

Operation Fluid Drive was a non-combatant evacuation operation led by the United States to evacuate American citizens and other foreign nationals from Beirut, Lebanon, during the Lebanese Civil War. On 20 June 1976, USS "Spiegel Grove" transported 110 Americans and 157 nationals of other countries from Lebanon to Piraeus, Greece. On 27 July, 300 additional persons, including 155 Americans, were evacuated to Piraeus. The cruiser USS "Little Rock" was present off the Lebanese coast during both evacuations.
First evacuation.
United States President Gerald Ford ordered commencement of the operation on 20 June 1976 at 1:23 a.m. EDT. Fighting on land routes to Damascus, Syria, disrupted the original plan of a road convoy evacuation.
At 10:37 a.m. Beirut time, the United States Navy LCU 1654 landing craft opened its bow ramp at Bain Militaire to allow 276 evacuees to board. U.S. diplomats in Lebanon had finished the truce arrangements needed for the evacuation only hours beforehand. The evacuees were unarmed, and were escorted by numerous Palestinian guerrillas and leftist Lebanese army soldiers. One family refused to continue with the evacuation when told, incorrectly, that their dog was not allowed. 
After a 25-minute trip, the landing craft reached USS "Spiegel Grove", which remained three miles offshore. The United States Sixth Fleet flagship, USS "Little Rock", pulled alongside USS "Spiegel Grove" to greet the refugees on board. The United States convoy consisted of five ships in total. One of the escort ships was the USS Connole FF 1056, and three Soviet warships, including "Kerch", shadowed the fleet. USS "Spiegel Grove" then sailed to Piraeus, Greece, arriving on 22 June 1976.
Second evacuation.
On 26 July 1976, the Sixth Fleet prepared to evacuate an additional 500 Americans and others from Lebanon. Dockside security was again provided by the Palestine Liberation Organization. Although 500 people were signed up to leave the country, only 155 Americans and 145 nationals of other countries were evacuated.