Which politician is associated with the 'Eastern Treaties'?

The Ostverträge were key treaties of the early 1970s that eased tensions with Eastern Europe and recognized postwar borders. They were part of the Federal Republic’s Ostpolitik under Chancellor Willy Brandt, including the Moscow and Warsaw Treaties.

• Link keywords: “Ostverträge” and “Ostpolitik” point to the early 1970s and the chancellor known for détente with the Eastern loc.
• Use signature associations: one leader is tied to reunification and the EU (1990s), another to the social market economy (1960s), and a Soviet leader to perestroika (mid–late 1980s). Eliminate those mismatches.
• Recall symbolic events: the Warsaw kneeling gesture connects to the architect of rapprochement with Poland and the USSR.
• Timeline strategy: match major foreign policy shifts to the correct chancellor’s term.