Pakistan, Aug. 19 -- The World Humanitarian Day is celebrated annually under different themes to pay tribute to thousands of men and women providing life-saving assistance and long-term rehabilitation to disaster-hit communities, and to those injured or killed on the front line in some of the most difficult terrains of the world.

It marks the day when the then Brazilian Special Representative of the UN Secretary General to Iraq Sergio Vieira de Mello and 21 of his colleagues were killed in the bombing of UN Headquarters, Baghdad on August 19, 2003.

The day - established by the UNGA in 2008 and first officially celebrated in 2009 - aims to increase public awareness about humanitarian assistance activities around the world and the importa...