13. The Iraq War Dispute (2003)
In 2003, NATO faced significant internal divisions over the U.S.-led invasion of Iraq. The United States, the United Kingdom, and other allies supported military action, while key members like France and Germany opposed it, advocating for diplomatic solutions. This discord led to a deadlock within NATO, as France and Germany refused to back down, challenging the alliance’s unity and prompting deep reflection on its role in future conflicts (theguardian.com).
