How did America's wartime boom influence the entry of the USA in the war?
Allies had taken out large American loans, so if the Allies lost they would be unable to pay back these debts, so the USA therefore had a considerable financial stake in the Allied victory
Causes of the German sinking of the Lusitania 1915 (2)
1. In 1915 the Kaiser declared that all waters around Britain were a warzone, following the British naval blockade which had prompted starvation in Germany, meaning that all ships (even neutral ones) were liable to German attack
2. American ship 'Lusitania' was therefore sunk by a German U-boat near the Irish coast
1. Telegram sent from Zimmerman (German foreign secretary) Mexico, stating that if Mexico invaded USA they could have an alliance with the Central Powers + reclaim land lost to America
2. British intercepted the telegram and sent it to America