219. The Federal Republic of Germany has had its present borders since …

Answer options

1. 1. 1933.
2. 2. 1949.
3. 3. 1971.
4. 4. 1990.

Explanation

The correct answer is 1990. The Two Plus Four Treaty (12 September 1990) terminated Four Power rights, affirmed German unity, and bound the unified Germany to renounce territorial claims. Through the Unification Treaty (effective 3 October 1990) the GDR acceded to the Basic Law, and the German-Polish Border Treaty (14 November 1990) recognized the Oder–Neisse line. Thus, for the first time since 1945, Germany’s external borders were definitively settled in international law, bringing the Basic Law’s provisional framework (former Art. 23, Preamble) to an end.