9 August 2016City flags at half mast for National Peacekeepers' Day_ (press release) _ ** Ottawa ** – National Peacekeepers’ Day is Tuesday, August 9, and it honours all Canadian peacekeepers who have served or who are currently serving in peacekeeping operations around the world.The flags at all City of Ottawa sites will be flown at half-mast on Tuesday, August 9 from sunrise until sunset to commemorate these courageous and committed men and women.For more information on City programs and services, visit ottawa.ca or call 3-1-1 (TTY: 613-580-2401 ). You can also connect with us through Facebook , Twitter and Instagram .