| A | B |
| nationalism | people of similar language, religion, culture and history desiring to form an independent political unit |
| imperialism | gaining colonies for trade and settlement |
| colonial rivalry | rivalry between major European powers of control of colonial interests before WWI |
| alliance system | grouping of major European countries into two groups |
| bourgoise | commercial middle class |
| conservatism | opposition to social, political and economic change |
| militarism | emphasis on building up military power:ships, army, weapons |
| Ottoman Empire | Turkish Empire |
| pacifism | belief that war and fighting are immoral |
| socialism | belief that resources should be redistributed equally in a society |
| assassination | killing with a political motive |
| Franz Ferdinand | Archduke, heir to the Austrian throne, assassinated by Gavril Princeps |
| Princeps | assassinated Archduke Franz Ferdinand in 1914 |
| Sarajevo | place where Gavril Princeps assassinated Archduke Franz Ferdinand |
| Kaiser | king of Germany pre 1918 |
| Dreadnought | British battleship launched in 1906 |
| Bulgaria | country that attacked Serbia in the second Balkan War in 1913 |
| Belgium | country invaded by Germany in 1915 sparking the beginning of WWI |
| Russia | country that came to the support of Serbia in 1913 |
| Defence | most European countries increased spending for this by 1913 |
| Entente | alliance formed between Russia, Britan and France in 1907 |
| Pan-Slavism | Austria-Hungary opposed this in the Balkans |
| Bismarck | Chancellor who oversaw the unification of German |