You will not need to file in Oregon according to this page about the military:
Residents stationed outside OregonYou're a nonresident for Oregon tax purposes if you meet all of the following requirements:
You'll only owe Oregon tax if you had income from other Oregon sources. If you have to file a return, use Oregon Form OR-40-N.
Full text from Oregon:
https://www.oregon.gov/DOR/programs/individuals/Pages/military.aspx
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