Exchange and Commissary in Japan for Military Retirees
A military retiree living in or visiting Japan, including Okinawa, may shop at U.S. installations, but family members may enter only with the retiree and only the retiree may buy.
VetTOC · Veteran benefits reference
Japan
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VetTOC has not written a veterans service office for this place yet.
Find a VA-accredited representative: www.va.gov/get-help-from-accredited-representative/find-rep
Written for Japan
Japanese Income Tax on Military Retired Pay, VA Compensation and Social Security
Under the U.S.-Japan tax treaty, military retired pay is taxable only by the United States unless the retiree is a Japanese national.
home.treasury.gov/system/files/131/Treaty-Japan-11-6-2003.pdf
1 federal benefit applies here as well and is left off this page; the place page lists it.