True, however, you must be a citizen to receive an officer's commission, which Gabbard has.
Gabbard was a citizen at birth, by virtue of the 1965 Immigration and naturalization Act. She can NEVER be an Article II eligible Natural Born Citizen. She was not born in a US state to 2 citizen parents.
The August 2019 issue of Vietnam magazine tells the remarkable tale of Capt. Larry Thorne, born Lauri Alan Torni in 1919 in Viipuri, Finland. He fought against the Soviet Union in the 1940 Winter War, where he compiled an outstanding combat record and was commisioned as a Finnish officer. He joined the Waffen SS in the Continuation War when the Nazis invaded the Soviet Union, and was commissioned as an Untersurmfuher (2nd Lieutenant), was awarded the Mannerheim Cross of Liberty (Finland’s highest decoration for bravery) and the German Iron Cross, 1st Class.
After the war he illegally entered the US, got some strings pulled by highly decorated anti-Soviet Finnish officers, and was allowed to enlist in the US Army. He changed his name to Larry Thorne and joined the the 77th Special forces Group. (Airborne)
He was commissioned as a 1st looie in 1957, and a Captain in 1960 with the 10th Special Forces Group in Germany.
He served 2 tours in Vietnam and compiled an excellent combat record of counterinsurgency. His men thought that he was the most outstanding combat commander that they ever knew. Hre did it all, LRRP patrols, base defense, ambuhes, and infiltration. He defended the Tinh Bien camp on the mekong River near the Cambodian border and inflicted horrendous casualties on the VC. He died in a helicopter crash in October of 1965. Thorne Hall at Fort Carson is named in his honor, and each summer the 10th Special Forces Group awards the Thorne Award for excellence to an outstanding candidate. He is also enshrined in the US Special Operations Command Commando Hall of Honor at MacDilll AFB in FL.
I could find no indications that he ever became an a US citizen. FYI. I just thought that this was an unusual and amazing story, about an unusual hero.