Which alliance was formed to bind Western Europe and the United States for security and economic ties, with an attack on any member treated as an attack on all?

Which alliance was formed to bind Western Europe and the United States for security and economic ties, with an attack on any member treated as an attack on all?

• A. Warsaw Pact
• B. NATO
• C. SEATO
• D. CENTO

Answer: (B)

The idea being tested is collective defense through a transatlantic alliance formed after World War II to deter aggression and secure Western Europe with the United States. The key feature is that an armed attack on any member is considered an attack on all, prompting a unified response. This describes NATO, the North Atlantic Treaty Organization, established in 1949 by Western European nations along with the United States and Canada.

The other options reflect different Cold War defense arrangements: the Warsaw Pact was a Soviet-led bloc of Eastern European countries created in response to NATO; SEATO and CENTO were regional alliances in Asia and the Middle East, not a pact binding Western Europe to the United States. While security and economic considerations intertwined in the era, the defining characteristic here is the principle of collective defense enacted through NATO.