Answer:
Similarities: World War I and World War II were wars conducted on a massive scale unlike any other wars in history. They were similarly caused by nationalism, imperialism, alliances, and militarism. Both wars saw countries trying to upset the power balance in Europe for their own gain. Difference: While WWI was fought in the trenches and used machine guns and poisonous gas, WWII was fought using modern artillery and machines utilizing more airplanes, ships, tanks, and submarines. Special operations methods were also developed during this war together with atomic missiles and secret communications.
Because action needed to be taken fast
B. <em>1998</em>. It was in this year that Osama bin Laden co-signed a <em>fatwa</em> (a non-binding legal pronunciation made by a religious authority) with Ayman al-Zawahiri, stating that the killing of North American and their allies was an "individual duty for every Muslim", to "liberate the al-Aqsa Mosque and Mecca from their grip". In the same year a series of U.S. embassies bombings (by terrorist cells linked or incited by al-Qaeda), thorough East African countries killed hundreds of people.
