The Holocaust Museum has a number of records for Iosif Sternberg, born in Bucuresti in 1912, an MD and you can request them -- listed on JewishGen  He appears to have been in Cernauti and was deported to Transnistria (Odessa was in Transnistria). People living in Bucuresti were unlikely to be deported.  In 1941 Jews were no longer in the Romanian Army.   I have some personal connection since my father was an inmate of the Vapniarka Concentration Camp, as well as my aunt and her husband; the wife of another  uncle perished at  Tulchin and the entire family of another out perished at Bershad.  Not sure what resistance are you referring to. Surviving in Transnistria may have been an act of resistance...

Luc Radu
Great Neck, NY