Final answer:
The treaties following World War I and II led to German unification and a change in Europe's political landscape, with Germany becoming a major NATO member but experiencing severe military and territorial limitations post-World War I, setting the stage for later conflict.
Step-by-step explanation:
The treaty signings following World War I had significant consequences for West Germany. After World War II, the impact of various treaties, particularly the unification of Germany, signified a substantial shift in both the political and military landscape of Europe.
German unification was fervently desired by the populations of both East and West Germany as the governments and economies of these nations weakened. West German Chancellor, Helmut Kohl, alongside international support, particularly from France, Britain, and the US, worked diligently towards this end. However, Soviet Premier Mikhail Gorbachev's efforts to prevent a unified Germany from joining NATO ultimately failed, with the unified Germany becoming a principal NATO member.
Under the Treaty of Versailles, Germany experienced drastic reductions in military capabilities, territorial losses, and the burden of reparations. These impositions left Germany in a weakened and humiliated state, which later contributed to the rise of political extremism and the onset of World War II. The severe military restrictions and territorial losses, including the demilitarization of the Rhineland and the cession of territories such as the Saar region, Alsace-Lorraine, and the city of Danzig, resulted in a significant reduction of German power and influence in Europe.