National Peacekeepers' Day in Canada
National Peacekeepers' Day in Canada is held on August 9. Celebrated on Sunday closest to the day. This event in the first decade of the month august is annual.
Assyrian Martyrs Day on August 7 (Assyrian community);
Nagasaki Memorial Day in Japan on August 9 (Nagasaki Peace Park is a park located in Nagasaki, Japan, commemorating the atomic bombing of the city on August 9, 1945 during World War II);
End-of-war Memorial Day in Japan on August 15 (when the National Memorial Service for War Dead is held);
San Martin Day in Argentina on August 17 (the third Monday of the month);
International Day of Remembrance and Tribute to the Victims of Terrorism on August 21 (adopted by the UN on October 27, 2017);
International Day of Remembrance for Victims of Violence Due to Religion or Belief on August 22 (International Day Commemorating the Victims of Acts of Violence Based on Religion or Belief - established since May 28, 2019 - UN A/RES/73/296)