6 Times America Almost Went to War by Mistake

Throughout history, the United States has come surprisingly close to major conflicts because of misunderstandings, accidents, or decisions made under extreme pressure.

1. The Cuban Missile Crisis

In 1962, the world came closer to nuclear war than at almost any other point in history.

When the Soviet Union placed nuclear missiles in Cuba, the United States responded with a naval blockade. For 13 tense days, both countries faced the possibility of a devastating conflict before leaders negotiated a peaceful resolution.

2. The USS Liberty Incident

During the Six-Day War in 1967, Israeli forces mistakenly attacked the American intelligence ship USS Liberty.

The incident killed 34 U.S. crew members and wounded more than 170 others. Some American officials initially feared it could trigger a wider conflict, though both countries later concluded it was a tragic mistake.

3. The Pig War

In 1859, the United States and Britain nearly fought over a remote island in the Pacific Northwest.

The dispute began after an American settler shot a British-owned pig on San Juan Island. Troops from both sides were sent in, but leaders eventually chose negotiation over war.

4. The Oregon Boundary Crisis

In the 1840s, Britain and the United States both claimed control of the Oregon territory.

Political tensions rose with the slogan “Fifty-Four Forty or Fight,” as some Americans demanded the entire region. The dispute was eventually settled peacefully through a treaty dividing the territory.

5. The Korean DMZ Axe Incident

In 1976, North Korean soldiers attacked American and South Korean troops during a confrontation over a tree inside the Demilitarized Zone.

Two U.S. Army officers were killed, and the incident triggered a major military response that raised fears of another Korean War.

6. The 1995 Norway Rocket Scare

In 1995, Russia briefly believed a Norwegian scientific rocket might have been a nuclear missile launch.

Russian officials activated emergency procedures, and President Boris Yeltsin became the first leader to use a nuclear briefcase during a potential crisis. The situation was resolved after the rocket’s purpose was identified.