Harris: USA stands by NATO - Guterres sees unstable world. 60th security conference begins in Munich.

Top politicians and experts, including 50 heads of state and government, will discuss the conflicts in Ukraine and the Middle East. The moment of the first day in Munich was when Navalny's wife, Julia Navalnaya, made a surprise appearance on stage, although she said she had not yet had her own confirmation of her husband's death. The conference acknowledged her appearance with a standing ovation. Around 4,800 officers are on duty for the Munich Security Conference.