Poland joined NATO alongside the Czech Republic and Hungary at a ceremony in Missouri
Background
The foreign ministers of the Czech Republic, Hungary and Poland deposited their instruments of accession to the Washington Treaty on 12 March 1999. The ceremony took place at the Truman Library in Independence, Missouri, in the United States. NATO records that with this act the Czech Republic, Hungary and Poland officially became members of the Alliance.
Date of accession:
12 March 1999
Place:
Truman Library, Independence, Missouri
Why it matters for exams: The date and place of Poland's NATO accession are frequently asked in international organisation questions.
Kerala PSCUPSC
In plain words
Washington Treaty The North Atlantic Treaty of 1949 — A state joins NATO by depositing its instrument of accession to this treaty.