On Sept. 11, 2023, President Biden observed the anniversary of the 9/11 terrorist attacks with a ceremony at which military base?

On Sept. 11, 2023, President Biden observed the anniversary of the 9/11 terrorist attacks with a ceremony at which military base?

Joint Base Elmendorf-Richardson, Alaska
Andersen Air Force Base, Guam
Joint Base Pearl Harbor-Hickam, Hawaii
Kadena Air Base, Japan
Camp Humphreys, South Korea

Correct Answer: Joint Base Elmendorf-Richardson, Alaska