NATO: 5 Things You Should Know

Question: In 1949, the U.S., Canada, and ten European nations signed a treaty creating NATO. What threat pushed them to join together?

Answer: NATO was created as a defensive alliance to stop Soviet expansion after World War II. It became the West’s main shield during the Cold War.

Question: Soon after West Germany joined NATO in 1955, the Soviet Union formed the Warsaw Pact. Why did the Soviets form the pact?

Answer: For decades, Europe was split between NATO in the West and the Soviet-led Warsaw Pact in the East. This standoff defined the Cold War until the Warsaw Pact dissolved in 1991.

Question: The Soviet Union collapsed in 1991, ending the Cold War, but NATO kept going. How did NATO change after its main rival was gone?

Answer: Former Soviet-bloc nations like Poland and the Baltic states joined NATO for protection. Russia came to see this eastward growth as a threat, which still shapes tensions today.

Question: NATO’s Article 5 says an attack on one member is an attack on all. What event caused NATO to use Article 5 for the first time?

Answer: Article 5 is the heart of NATO, a promise of collective defense. Its only use came after 9/11, when allies stood with the United States.

Question: Finland and Sweden avoided military alliances for decades. What event pushed both countries to join NATO in 2023 and 2024?

Answer: Russia’s attack on Ukraine made neutral neighbors feel unsafe on their own. Their decision to join showed how NATO grows when members fear a common threat.