Mexico once started a war over Texas and lost half their country instead

Taylor’s Flying Artillery Victory at Palo Alto

The grassy fields of Palo Alto hide a story that changed America forever. On May 8, 1846, General Zachary Taylor led 2,300 U.S. troops against 3,400 Mexican soldiers under General Mariano Arista.

The clash came after Mexican forces killed 11 Americans at Rancho de Carricitos, which President Polk used to claim Mexico had shed “American blood on American soil.”

Taylor’s “Flying Artillery” – quick-moving horse-drawn cannons – won the day. This battle kicked off a war that would add California, Nevada, and five other states to America.

The Palo Alto Battlefield National Historical Park brings this pivotal moment to life through authentic uniforms and battle artifacts.

Texas Got a New Border When It Joined America

America made Texas the 28th state on December 29, 1845, starting a fight with Mexico. Mexico stopped talking to America and warned that taking Texas meant war.

The two countries fought over the border line – Mexico wanted the Nueces River, while Texas and America wanted the Rio Grande.

President James Polk, who won by promising to grow America, told General Zachary Taylor to move troops to the disputed area in July 1845.

Polk Sent Soldiers Right to Mexico’s Doorstep

In January 1846, Taylor got orders to put his army near the Rio Grande to protect Texas. He built Fort Texas on the north bank, right across from the Mexican town of Matamoros.

Taylor also set up Fort Polk at Point Isabel on March 24 as his supply base 23 miles from the river fort.

Mexican General Mariano Arista came to Matamoros with about 5,000 troops on April 24, ready to defend what Mexico still thought was its land.

Blood Spilled When Mexican Cavalry Trapped American Scouts

On April 24, Taylor sent Captain Seth Thornton with 70 dragoons to check reports of Mexican troops crossing the river 20 miles upstream.

The next day, General Anastasio Torrejón’s 1,600 Mexican cavalry surrounded Thornton’s small patrol at Rancho de Carricitos.

The fight killed eleven Americans and left most others hurt or captured, including Thornton himself and Captain William Hardee.

President Polk used this news to tell Congress that Mexico had “shed American blood upon American soil” and ask for war.

Cannon Fire Echoed for Miles as Fort Texas Came Under Attack

Mexican forces started bombing Fort Texas on May 3, 1846, while Taylor was away getting supplies at Point Isabel.

People heard the cannon blasts nearly 50 miles away at Point Isabel, sending “a thrill through every heart” of the soldiers there. Taylor had left Major Jacob Brown with 500 men to hold the fort during the attack.

At Point Isabel, Taylor worked on making his defenses stronger before heading back to help his surrounded men.

Taylor’s Army Marched Straight Toward the Enemy

On May 7, Taylor left Point Isabel with 2,300 soldiers to save Fort Texas from the Mexican siege. General Arista moved 3,200 Mexican troops to block Taylor along the road.

The American force brought better cannons, including 6- and 8-pounders plus two huge 18-pounder guns.

Major Samuel Ringgold led the new “Flying Artillery” units that could move quickly during battle, giving Taylor a big edge over the slower Mexican guns.

Two Armies Faced Each Other Across an Open Prairie

The armies met around 2 PM on May 8 at Palo Alto prairie, with Arista’s forces spread across almost a mile. Taylor put his men with artillery protected by infantry squares on both sides.

From where he stood, Taylor saw Mexican cavalry on the left near thick brush, with long lines of infantry stretching to the right.

Mexican cannons fired first at 2 PM, but many of their shots fell short, wasting bullets and showing where they were.

American Cannons Cut Roads Through Mexican Ranks

Ringgold’s and Duncan’s “Flying Artillery” worked perfectly against the standing Mexican positions.

American cannons “cut a way through their ranks making a perfect road” while Mexican soldiers closed the gaps without backing down.

The massive 18-pounder cannons killed many soldiers with Arista’s smaller 4-pounder guns.

Mexican gunpowder worked so poorly that many cannonballs just bounced along the ground, letting American soldiers step aside to avoid them.

Mexican Horsemen Couldn’t Break Through American Squares

Arista told Torrejón’s cavalry to attack the American right side, but they moved slowly against the tight infantry formations.

Colonel Twiggs formed the 5th Infantry into squares that stopped the cavalry charge with musket fire. A second cavalry attack against the left side failed when Captain Duncan’s battery moved forward with dragoons.

During the fighting, Major Ringgold took a fatal hit from a cannonball that struck both his thighs while he sat on his horse.

Burning Grass Created a Smokescreen Between the Armies

A grass fire started by a hot cannon wad made thick smoke between the armies for about an hour. Arista pulled his left flank back 1,000 yards while Taylor moved forward, turning the battle line by about 40 degrees.

As the sun began to set, Arista tried one last charge that fell apart when his light cavalry ran away. The fighting stopped when darkness came, with both armies camping on the battlefield through the night.

The Battle’s Toll Showed America’s Military Edge

American losses stayed light with 9 killed, 44 wounded, and 2 missing.

Mexican losses hit much harder: 102 killed, 129 wounded, and 26 missing according to their own records. When morning came on May 9, Taylor’s men saw the Mexican army heading south toward Matamoros.

Congress officially declared war on Mexico on May 13, 1846, five days after the battle, turning what started as a border fight into a full-scale war.

A Small Battle Led to a Massive Land Grab

Taylor became a national hero thanks to his victories, helping him win the 1848 presidential election. The war ended with the Treaty of Guadalupe Hidalgo on February 2, 1848, forcing Mexico to give up 55% of its land.

America gained over 525,000 square miles including California, Nevada, Utah, New Mexico, Arizona, and parts of Colorado.

Mexico got $15 million for all this territory, and the Rio Grande became the official border of Texas, just as the Americans had wanted all along.

Visiting Palo Alto Battlefield National Historical Park, Texas

Palo Alto Battlefield National Historical Park at 7200 Paredes Line Road in Brownsville lets you walk where General Zachary Taylor fought Mexican forces in 1846. The visitor center is open daily 9 a.m. to 4:30 p.m. with free admission.

Watch the 15-minute film “War on the Rio Grande” in English or Spanish, then take the half-mile trail with signs explaining the battle that started the Mexican-American War and made Taylor president.

This article was created with AI assistance and human editing.

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