How long has the United States been committed to the Korean Peninsula's security?

How long has the United States been committed to the Korean Peninsula's security?

• A. For more than a century.
• B. For nearly 70 years.
• C. For about 20 years.
• D. For several decades, but less than 50.

Answer: (B)

The United States has maintained a security commitment to the Korean Peninsula since the early 1950s, anchored by the 1953 Mutual Defense Treaty and the ongoing U.S. military presence that followed the Korean War armistice that year. That means roughly seven decades of alliance and deterrence, so “nearly 70 years” is the best fit. The other timeframes don’t align with the historical record: a duration of over a century would imply a long before the 1950s, while about 20 years or several decades but under 50 would place the commitment far shorter than it actually has been.

The United States has maintained a security commitment to the Korean Peninsula since the early 1950s, anchored by the 1953 Mutual Defense Treaty and the ongoing U.S. military presence that followed the Korean War armistice that year. That means roughly seven decades of alliance and deterrence, so “nearly 70 years” is the best fit. The other timeframes don’t align with the historical record: a duration of over a century would imply a long before the 1950s, while about 20 years or several decades but under 50 would place the commitment far shorter than it actually has been.