1. A Vietnamese woman carries her wounded daughter as they flee heavy fighting near Huan Loc, about 35 miles north of Saigon, on March 13, 1975. The Associated Press 2. Buses, jeeps, cars, and military trucks jam a road leading to the central coast region of South Vietnam. Thousands fled the country's northern and western provinces following an onslaught by North Vietnamese forces. 3. Xuan Loc, South Vietnam. On April 14, 1975, refugees hang on for dear life as they attempt to board a giant Chinook helicopter taking off some 38 miles northeast of Saigon. CORBIS/Bettmann The Associated Press 4. Mobs of Vietnamese scale the 14-foot wall of the U.S. Embassy in Saigon trying to get to the helicopter pickup zone. CORBIS/Bettmann 5. Evacuees are helped aboard an Air America helicopter perched atop a Saigon building on April 29, 1975. The evacuation site was one of many from which Americans and foreign nationals were evacuated to waiting Navy ships The Associated Press 6. U.S. Marines debarked as evacuees loaded into the "Jolly Green Giant" at the U.S. Embassy on April 29, 1975, initiating the final stage of evacuation from Saigon, Vietnam. CORBIS/Bettmann 7. An American punches a man in the face as he tries to close the doorway of an airplane overloaded with refugees seeking to flee Nha Trang, which was being taken over by Communist troops in April 1975. The Associated Press 8. Americans and other evacuees arrive aboard a U.S. Navy ship after being airlifted out of Saigon by a U.S. Marine helicopter on April 29, 1975. Reuters 9. A North Vietnamese tank crashes through the gates of the Presidential Palace in Saigon on April 30, 1975. The taking of the palace marked the fall of the U.S.-backed south and the end to a decade of fighting. Reuters 10. North Vietnamese troops run across the tarmac of Tan Son Nhat air base in Saigon as smoke billows behind abandoned U.S. Air Force transport planes on April 30, 1975. Reuters 11. North Vietnamese tanks roll across the Presidential Palace grounds in Saigon on April 30, 1975.