A speaker at the very foreground of the negotiations between Poland and the European Union, Geremek supported the idea of the EU as “a community in its Constitution”, stressing “the need to revive the European spirit.”
All the ELDR friends, deeply touched by the early loss, remember his civic engagement against the communist regime. In the 1980s, as one of the founders of the party Solidarnosc, he contributed to erode and finally topple the authority of the Communist party in Poland.

After only ten years of reconstruction he signed another success for his country: Poland joined the North Atlantic Treaty Organisation (NATO). 
Sensitive to Chechen matters, Geremek proposed “Memorial”, the Russian most known organisation for the defense of human rights, as candidate for the Nobel Peace Prize.

In June 2001, he founded the centre party The Democratic Union (later merged into The Freedom Union)led its European election campaign and, once elected MEP, missed the European Parliament presidency for only a few votes.

In 2007 he refused, as an act of civil disobedience, to submit a new law-bound declaration that ordered everyone in a public position - including lawmakers, government ministers, judges, journalists and teachers - to sign declarations confirming they didn't co-operate with Communist era secret police, if they hadn't already done so. ELDR declared the new law as a risk to free journalism and free academic researches.