If you moved to WA in 2018 and "abandoned" your previous domicile in Virginia, then for 2019 you are a WA resident. Presumably you informed the military about the change in your state of residence.
WA has no state income tax, so as a full-year WA resident in 2019 you have no state tax return to file.
**Answers are correct to the best of my ability but do not constitute tax or legal advice.
