2 Zlotys Wstąpienie Polski do NATO

Poland joined NATO on March 12, 1999, becoming a member alongside the Czech Republic and Hungary in the alliance's first post-Cold War expansion eastward. The accession ceremony took place in Independence, Missouri — chosen deliberately for its proximity to the Truman Library, honoring the president who signed the original North Atlantic Treaty. This coin was issued the same year, part of Poland's Nordic gold commemorative program that ran through the 1990s and 2000s.