| A | B |
| Ho Chi Minh | Leader of the communist party, led fight for Independence |
| Viet Minh | group formed by Ho Chi Minh to gain Vietnam's independence, from foreigners (France, Japan) |
| Domino Theory | One country falls to communism, others will fall too |
| Geneva Accords (Agreement) | Agreement ending the war between france and VietMinh |
| Viet Cong | Communist opposition group centered in South Vietnam |
| Ho Chi Minh Trail | network of paths along the border of Laos and Vietnam, used to supply the VietCong in the song |
| Tonkin Gulf Resolution | Congress granted LBJ permission to use "any force necessary" to protect our troops |
| Guerilla Warfare | the use of hit and run tactics by small, mobile groups of irregular forces |
| French Indochina | The name for Laos, Cambodia and Vietnam when they were a colony of France |
| morale | attitude of soldiers/civilians |
| Material | Weapons and supplies of war |
| Manpower | soldiers and forces available to fight |
| Military advisors | Soldiers who act as teachers/experts and train other forces |
| International waters | water that is more than 3 miles from the coastline of any country |
| Operation Rolling Thunder | Continued bombing of North Vietnam Started after Tonkin Resolution |
| draft | mandatory military service to begin when your group number is called. |
| Agent Orange | defoliant; chemical dropped on jungles of vietnam to kill plants |
| Napalm | a highly flammable sticky jelly used in bombs |
| Gulf of Tonkin | Mody of water where US ships were fired upon, allowing LBJ to escalate US involvement in vietnam |
| Khe Sanh | Battle in which 5,600 Marines were surrounded by 40,000 NV troops for over 30 days |
| General Westmoreland | US general in charge of forces in Vietnam |
| Vietnamization | Nixon's policy of turning war over to South Vietnam Army |
| Depose | overthrow the ruler of the country |
| South Vietnam | The side that the United States Supported /fought for |
| Results of war | Entire country became communist in 1975 |
| Gulf of Tonkin Incident | 2 US ships attacked after NV forces were warned, LBJ escalates war |
| Total number Americans Killed | 58, 132 |
| Tet Offensive | Surprise attack during Vietnamese New Year Cease Fire. US won, Americans at home shocked. |
| My Lai Massacre | US troops slaughtered women, children, and elderly in village |