Answer:
President Mirabeau B. Lamar, who took office at the end of 1838, had a very different attitude towards Indians than did Sam Houston. Lamar believed that the Indians had no integrity; thus, there was no possibility of peaceful negotiation or co-existence. The only solution to the violent clashes between whites and Indians was to rid Texas of the Indians--permanently.
Lamar spoke for the majority of white Texans, who had wearied of Sam Houston's peace efforts. Houston had achieved little cooperation with the Texas Congress, which ratified almost none of his treaties. By contrast, Congress was quick to pass Lamar's frontier defense bills and appropriated more than a million dollars to pay for troops, military roads, and forts.
Relations with the Cherokees were the first to come to a boil. Lamar hoped to convince the Cherokees to leave Texas peacefully, but he made it clear that if they did not leave, they would face unmerciful military action. Lamar sent a commission of leading hard-liners, including David G. Burnet, Thomas J. Rusk, and Albert Sidney Johnston, to negotiate the removal of the tribe to the Arkansas territory. He also deployed about 900 army regulars, volunteers, and militia to East Texas.
Fearful of being attacked, the Cherokees retreated to a fortified Delaware village near Camp Jackson. On July 15, 1839, several hundred warriors under Chief Bowl engaged the Texans near present-day Tyler. In the initial battle, the Indians were defeated, losing eighteen men to the Texans' three. The next day, the Texans pursued the retreating Indians and inflicted more than 100 casualties, Chief Bowl among them. They also burned the Indian villages and chased the Indians across the Red River into neighboring Indian Territory (Oklahoma). In the aftermath, many of the weaker or more peaceful tribes in East Texas were also forced to relocate.
Explanation:
this is not all written by me this is off of a website called tsl.texas.gov