Explanation

The Strait of Hormuz crisis primarily involves tensions between Iran and the United States.

This narrow waterway is strategically vital because a large portion of the world’s oil supply passes through it, so conflicts between Iran and the U.S. in this region have global economic and security implications.

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Explanation

The U.S. Army chief who was removed in April 2026 was Randy George.

He was serving as the Chief of Staff of the U.S. Army when he was asked to step down (effectively fired) by Defense Secretary Pete Hegseth on April 2, 2026, and was forced into immediate retirement.

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Explanation

Starting in June 2026, new U.S. dollar bills will feature the signatures of President Donald J. Trump and Treasury Secretary Scott Bessent.

Note: This is the first time in history that a sitting U.S. president's signature will appear on the nation's banknotes.

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Explanation

• The southern border of the United States is connected to Mexico.

Additional information:

• Border length: ~3,145 km (1,954 miles)
• Western end: Pacific Ocean (near Tijuana, Mexico)
• Eastern end: Gulf of Mexico (near Brownsville, Texas)
• Border states in USA: California, Arizona, New Mexico, Texas
• Major crossings: San Ysidro, El Paso, Laredo

Last verified on 18-03-2026

Explanation

• In April 1917, the United States entered World War I against the Central Powers.
• The main reason was Germany’s unrestricted submarine warfare in the Atlantic Ocean.
• German U-boats (submarines) attacked several ships, including American commercial vessels.
• This threatened U.S. trade and security, leading President Woodrow Wilson to declare war on Germany.

Additional information:

• World War I duration: 1914–1918
• Famous ship sunk by Germany: Lusitania in 1915
• Countries in Central Powers: Germany, Austria-Hungary, Ottoman Empire, Bulgaria
• War ended: 11 November 1918

Last verified on 11-03-2026