[Note: Starting today, I’m switching to Monday, Wednesday & Friday posts to keep more up to date.]

The strange elk in the background are actually Nilgai, an Asian Antelope that escaped from a ranching project and now live in the park. In a way, it’s appropriate to start with an invasive species, since this park marks the start of the Mexican American War. In the 1840’s President Polk campaigned on expanding the country westward and as President sent troops to the Rio Grande, even though Mexico viewed it as their territory. Mexico, having only recently won its independence in 1821, was having trouble managing its northernmost territories, and lost control of much of Texas during a revolt by American settlers in the 1830’s. When Mexico’s army crossed the Rio Grande to expel the interlopers, Polk claimed that America was under attack and the war was on.

Mexico laid siege to a small fort on the north bank of the Rio Grande, and US troops were rushed in from up the coast to reinforce it. The two forces met in the middle here in a dry part of the delta. The US had better artillery, and the Mexicans had more men. The US troops were under command of Zachary Taylor, who later turned his war fame into a successful run for President, and many veterans of this battle would go on to serve in the Civil War. Lt. US Grant, who opposed war with Mexico personally, engaged in his first battle here. Between heavier guns firing more deadly shells, light guns quickly turned to face flanking attacks, and well trained US troops who engaged in hand to hand combat between here and the fort, the Mexican Army was forced to retreat. Around 100 Mexican troops and 10 US troops died in battle here.

Today the field is marked with flags and cannon to show the positions of the two sides and ‘interpretive exhibits’—small signs—to explain what happened in different places where the troops faced off. Closer to Brownsville, there’s a much smaller battlefield, the Resaca de la Palma, where the Mexican Army bravely made a stand to protect their retreat. There is a viewing platform of the resaca, meaning ‘often dry river delta channel’ (and not ‘hangover’, as the word means today). The siege of the fort was lifted, but the fort’s leader Major Brown and one other US soldier were killed in action. The fort and eventual city, Brownsville, were later named for the young officer.

Although the site only covers the first week of the war that took place in what’s now the US, the war raged on for two more years with US troops taking cities deep into Mexico, until Mexico agreed to cede Texas and sell its rights west all the way to the Pacific. Mexico lost 1/2 its territory and the US doubled in size. As interesting and consequential as the history is, the site is a well-marked field with a path for each army, so it requires some imagination and curiosity to appreciate. The small visitor center is educational, bilingual, has an informative film, and has enthusiastic and knowledgeable rangers and volunteers. But by all means go out on the battlefield, if only to see the wildlife. I saw over a dozen Nilgai, several hawks hunting in the tall grasses, a crested caracara, and more. This is a well-known area for birders.