Former countries similar to or like West Germany

Country at the intersection of Central and Western Europe. Situated between the Baltic and North seas to the north, and the Alps to the south; covering an area of 357022 km2, with a population of over 83 million within its 16 constituent states. Wikipedia

Divided between the two global blocs in the East and West, a period known as the division of Germany. Stripped of its war gains and lost territories in the east to Poland and the Soviet Union. Wikipedia

Country that existed from 1949 to 1990, the period when the eastern portion of Germany was part of the Eastern Bloc during the Cold War. Commonly described as a communist state in English usage, it described itself as a socialist "workers' and peasants' state". Wikipedia

Constitution of the Federal Republic of Germany. Approved in Bonn on 8 May 1949 and came into effect on 23 May after having been approved by the occupying western Allies of World War II on 12 May. Wikipedia

The process in 1990 in which the German Democratic Republic (GDR) became part of the Federal Republic of Germany (FRG) to form the reunited nation of Germany. Officially referred to as German unity , celebrated each year on 3 October as German Unity Day (Tag der deutschen Einheit). Wikipedia

The concept of Germany as a distinct region in central Europe can be traced to Roman commander Julius Caesar, who referred to the unconquered area east of the Rhine as Germania, thus distinguishing it from Gaul (France), which he had conquered. The victory of the Germanic tribes in the Battle of the Teutoburg Forest (AD 9) prevented annexation by the Roman Empire, although the Roman provinces of Germania Superior and Germania Inferior were established along the Rhine. Wikipedia