Answer:
Davy Crockett joined the Alamo defenders for a combination of reasons. One reason was his strong belief in the concept of liberty and freedom, and his desire to support the Texans in their fight for independence from Mexico. Another reason was his own personal financial difficulties, as he saw joining the Alamo as a way to earn money and provide for his family. Additionally, he was seeking political office in Tennessee, and his involvement in the Alamo would increase his public profile and give him greater political influence. Despite some historical debate over his exact motivations, it is clear that Crockett believed strongly in the cause of Texas independence and was willing to fight and die for it.