The Republic of Užice was a short-lived liberated Yugoslav territory and the first liberated territory in World War II Europe, organized as a military mini-state that existed in the autumn of 1941 in the western part of the Serbia. The Republic was established by the Partisan resistance movement (see more). On the liberated area postal service was functioning fairly normal. In addition to German occupation stamps, some provisional attempts were in use too.
1941 Republic of Užice, provisional stationery.