Answer:
The idea that was used as inspiration for American troops during the Battle of San Jacinto was "Remember El Alamo", as this battle was the revenge from the cruel Mexican attack on El Alamo.
Step-by-step explanation:
The Battle of San Jacinto took place on April 21, 1836 and was a decisive event in the struggle for Texas independence. Under the command of Samuel Houston, the Texas army surprised and decimated the Mexican army commanded by General Antonio Lopez de Santa Anna in the middle of a nap.