after the war, elbrick returned to poland in june 1945 to reopen the us embassy, then went to the state department as assistant chief of the division of east european affairs. he served as counselor at the u.s. embassy in havana from 1949 to 1951. in 1951 and 1952, he served respectively as counselor of the us embassy in london and then in paris and as a delegate to the north atlantic council.