March 7 in Military History

The siege of Haarlem by Spanish forces during the Dutch Revolt entered its fourth month. The city's fierce resistance, including women fighting on the walls, became a symbol of Dutch determination against the Spanish Empire. The city eventually fell in July 1573 after a seven-month siege, but the resistance inspired the broader Dutch fight for independence.

Napoleon attacked Russian forces under General Mikhail Vorontsov entrenched on the Chemin des Dames plateau near Craonne, France. Despite committing the Young Guard and suffering heavy casualties, Napoleon drove the Russians from the plateau but failed to achieve the decisive victory he desperately needed as Allied armies closed in on Paris.

On the second day of the Battle of Pea Ridge in Arkansas, Union General Samuel Curtis launched a devastating counterattack against Confederate forces under Earl Van Dorn. With the Confederate left wing shattered by the deaths of Generals McCulloch and McIntosh the previous day, and Van Dorn's forces out of ammunition, Curtis drove the Confederates from the field in a decisive victory that secured Missouri for the Union.

Alexander Graham Bell received U.S. Patent No. 174,465 for the telephone. Though not a military event itself, the telephone would revolutionize military communications, replacing the telegraph's limitations with real-time voice communication. By World War I, field telephones connected trenches to headquarters, fundamentally changing the command and control of military operations.

In a massive gamble, Adolf Hitler ordered German troops to reoccupy the Rhineland, which had been demilitarized under the Treaty of Versailles and the Locarno Pact. France and Britain protested but took no military action. Hitler later admitted that the 48 hours after the march-in were "the most nerve-wracking of my life", if France had responded with force, the small German contingent would have had to withdraw.

Soldiers of the U.S. 9th Armored Division discovered that the Ludendorff railroad bridge at Remagen was still standing, the only intact bridge over the Rhine. Under fire, infantry rushed across while German engineers desperately tried to demolish it. The capture gave the Allies their first bridgehead across the Rhine and accelerated the collapse of the Western Front.

As the U.S. 3rd Armored Division pushed deeper into Cologne, the war's most famous tank engagement unfolded near the Cologne Cathedral. An M26 Pershing heavy tank destroyed a German Panther that had already knocked out two Shermans. The duel was captured on film by U.S. Army Signal Corps cameramen and remains some of the most widely viewed tank combat footage from World War II.

The U.S. Eighth Army under General Matthew Ridgway launched Operation Ripper, a major offensive to recapture Seoul and push Chinese and North Korean forces back across the 38th Parallel. The operation employed massive artillery and air support ahead of a methodical infantry advance, the "meat grinder" strategy that Ridgway used to inflict unsustainable casualties on Chinese forces.

Alabama state troopers and Dallas County posse men brutally attacked approximately 600 civil rights marchers at the Edmund Pettus Bridge in Selma, Alabama, using tear gas, clubs, and mounted horsemen. The nationally televised violence, including the beating of future Congressman John Lewis, shocked the nation and directly led to the passage of the Voting Rights Act of 1965.

UN chief weapons inspector Hans Blix told the Security Council that inspectors had found no weapons of mass destruction in Iraq after months of inspections. Despite this report, the United States and Britain continued to press their case for military action, and the invasion of Iraq began 13 days later on March 20, 2003.