500 United States Army troops moved into the Walt Disney Studios lot in Burbank, California, to defend the Hollywood facility and nearby factories against enemy sabotage or air attacks, and as the United States began mobilizing for the war, anti-aircraft guns were installed.
500 United States Army soldiers of the 121st Anti-Aircraft Artillery (AAA) Gun Battalion occupied Walt Disney Studios the day after the attack for eight months in the period of the West Coast invasion scare, earning Disney as the only Hollywood studio to come under military occupation in history. 
