Final answer:
Sam Houston learned the importance of a well-trained army and intelligence gathering from the defeats at the Alamo and in South Texas.
Step-by-step explanation:
In the defeats at the Alamo and in South Texas, Sam Houston learned several key lessons that shaped his strategy for the Texas Revolution.
Firstly, he realized the importance of a well-trained and disciplined army. The lack of military expertise and organization at the Alamo contributed to the defeat, prompting Houston to prioritize training and discipline in his own forces.
Secondly, he understood the significance of intelligence gathering. The surprise attacks and quick movements by the Mexican forces caught the Texian rebels off guard. In response, Houston implemented effective intelligence networks to gather information about the enemy's plans and movements.
Learn more about Sam Houston's lessons from defeats