title: NATO-EU: security policy in the XXI century.
abstract: The article characterizes the state and development of the security policy of NATO and the EU in the 21st century. The main provisions of the EU security system are disclosed. Attention is focused on the key aspects of the formation of a strategic partnership in the specified period. Challenges to European and global security that consolidate NATO and EU efforts to deepen cooperation are outlined. There are terrorism, Russian aggression, hybrid, and now full-scale war in Ukraine and the annexati
journal: SUMY HISTORICAL AND ARCHIVAL JOURNAL