The Marines in Beirut didn’t ­receive enough support in gathering intelligence or turning it into useful analysis, the ­Defense Department’s ­investigation later found.

The overall mission of U.S. Marines in Lebanon commenced in August 1982 in the middle of a civil war. Competing factions had begun to rip the Middle Eastern country apart.

A new book showcases how the 1983 bombing of a Marine Corps barracks in Beirut, Lebanon, paved the way for America's war on terrorism.