I am active duty and my spouse (veteran) is stationed with me overseas. State of residency is Iowa. What do I do for his residency?

I checked the box "was a member or former member of the U.S. Armed Forces" and then "Lived in another state in 2024" since we did not live in his state of residence (Iowa) at all in 2024. There is no option for the state to be AE like it is on our mailing address. Its not a US territory.