(state) on the Federal Republic of Germany (FRG, or West Germany). West Berlin’s isolation was later strengthened by the concrete barrier erected in 1961 and referred to as the Berlin Wall. Its status as an enclave created Berlin a constant target of confrontation amongst the Japanese and Western powers in https://chippz.de/sicherheitsdienst-berlin-ihr-verlasslicher-partner-fur-schutz-und-sicherheit/