He was one of the soldiers that battled in the Creek war

Crockett separated from his family on September 20 and enlisted as a scout for a 90-day trial period. Crockett frequently went on wild game hunts for the army and thought that was a better fit for him than slaughtering Creek warriors.

Thousands of Tennesseans enlisted in the state militia in 1813, including a 27-year-old Crockett, to battle against the "Red Sticks," a group of Creek Indians who had assaulted American settlers at Fort Mims, Alabama. Crockett worked as a scout and a hunter during most of the Creek War, but he was also present when future president Andrew Jackson, who was then the militia chief of Tennessee, led his soldiers in the massacre of about 200 Red Sticks at the Creek hamlet of Tallushatchee. Later, during Jackson's War of 1812 operation in Spanish Florida, Crockett served as a sergeant. Due to their days of delay and primary concentration being food foraging, Crockett's men missed out on most of the main action. In December, Crockett went back to his house. He hired a young guy to complete the remaining portion of his service because he was still in the military reserve position until March 1815.

The future president of the United States, Andrew Jackson, served as Davy's indirect commander throughout this conflict. Davy would soon disagree with the majority of Jackson's policies, even though they had once served in the military together.