Why were the Marines brought back to Lebanon in 1983 as part of a Multinational
Force?

The agreement provided for the deployment of a Multinational Force to assist the Lebanese Armed Forces in evacuating the PLO, Syrian forces and other foreign combatants involved in Lebanon's civil war. The four-nation MNF was created as an interposition force meant to oversee the peaceful withdrawal of the Palestine Liberation Organization.

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the percentage of students at the school need special diets is

c) 10 percent

your answer would be (b)