| A | B |
|---|
| Cause of Revolutionary War | Common Sense; taxation without representation |
| Cause of War of 1812 | impressment of American sailors by British |
| Cause of War Between the States | states rights; slavery |
| Cause of Spanish-American War | American imperialism |
| Cause of World War I | nationalism; European imperialism |
| Cause of World War II | German, Italian, Japanese aggression |
| Cause of Korean War | Spread of communism |
| Cause of Vietnam War | Spread of communism by Ho Chi Minh |
| Cause of Gulf War | Iraq invades Kuwait |
| Cause of Iraqi War | enemy support of terrorism; threat of weapons of mass destruction |
| Catalyst for Revolutionary War | Common Sense |
| Catalyst for War Between the States | firing on of Ft. Sumter, SC |
| Catalyst for Spanish-American War | explosion of U. S. S. Maine |
| Catalyst for World War I | assassination of Archduke Francis Ferdinand of A-H empire |
| Catalyst for World War II | Hitler's invasion of Poland |
| Catalyst for Korean War | North invades South |
| Catalyst for Vietnam | fall of Dien Bien Phu |
| Cause for U. S. entry into World War I | Zimmerman note; unrestricted submarine warfare; |
| Catalyst for U. S. entry into World War II | Japanese bombing of Pearl Harbor |
| Catalyst for U. S. entry into Vietnam | "attack" on U. S. S. Maddox in Gulf of Tonkin |
| Turning point battle of American Revolution | Battle of Saratoga |
| Battle of Saratoga | French decided to help the American colonists |
| Turning point battle of Civil War | Battles of Vicksburg and Gettysburg |
| Battle of Gettysburg | South never again invaded the North |
| Vicksburg | North gained complete control of the Mississippi River |
| Turning point in World War II Pacific Theater | Battle of Midway |
| Battle of Midway | American gained control of Pacific air and water; land all that was left |
| turning point battle of World War II European Theater | Battle of Normandy/D-Day |
| Battle of Normandy/D/Day | led to American recapture of France |
