<span>In his Nobel Acceptance Speech in 1964, Dr. Martin Luther King, Jr. described passivity as sterile, effectively contrasting passivity with his preferred path of change- nonviolence. This made passivity seem like a failure, not bridging the gap between peoples but failing to engage anyone at all.</span>
U-boats were military submarines used by the Germans. While they were useful against warships, U-boats were the most effective in economic warfare by blockading coasts so resources could not be shipped to Germany's allies. WWI was the first major war that employed submarines in warfare.
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Crises and alliances often bring about great moments in history, and one such example would be the alliance system that existed after German unification in the 1900s.