This comes about in commemoration of the bomb attack on the UN Headquarters in Baghdad, Iraq on the 19th of August 2003.
During the remembrance, WHD focuses on a theme, bringing together partners from across the humanitarian system to advocate for the survival, well-being and dignity of people affected by crises. The day also reinforces the need for the safety and security of aid workers.
The theme for this year is #NoMatterWhat which focuses on the importance, effectiveness and positive impact of humanitarian work.