Why did president lamar sewnd troops to Santa Fe?

Answer 1

In an effort to establish claim to all the lands up to the Rio Grande, Texas at least had to make an effort to display that their claim wasn't just paper but a marked imprint on the lands beyond the Comancheria and the Staked Plains. President Mirabeau Lamar of the Republic of Texas hoped to show the United States that Texas was even bigger then the Congress acknowledged. Poor luck and poor planning allowed them to meet up with a Mexican Army detachment that showed them the way home via Mexico City.