no access to health care and long-term public health goals are almost impossible to achieve. Many facilities have to close after attacks, hospitals run out of supplies and health projects, like vaccination campaigns, come to halt. Additionally, staff leave their posts, flee the region or country and international organizations withdraw their staff and/ or close projects. The general access to health facilities and care is restricted for people in need. The number of people affected indirectly is therefore even higher than the actual numbers of victims. Moreover, attacks have a negative impact on the psychological well-being of staff and affect their motivation as well as the quality of care provided by them. List of major attacks on humanitarian workers A full downloadable list of major incidents, from 1997–present, of violence against aid workers can be found at Humanitarian Outcomes' Aid Worker Security Database. 1964 Democratic Republic of the Congo – Jean Plicque (ILO) and Francois Preziosi (UNHCR) were killed by Congolese rebels. 1993 Somalia – January 2, 1993 - A gunman killed Sean Devreaux, 28, a British worker for UNICEF in Kismayu. Somalia – February 22, 1993 - Gunmen killed Valerie Place, 23, an Irish nurse with the charity Concern. Bosnia – July 5, 1993 – Scottish aid worker Christine Witcutt shot and killed by a sniper in Sarajevo. Bosnia – October 25, 1993 – Danish aid worker Bjarne Vium Nielsen killed in attack on humanitarian aid convoy. 1996 Burundi – June 4, 1996 – Three ICRC delegates were killed in an attack on two vehicles on the road between the villages of Rugombo and Mugina in the northern province of Cibitoke, resulting in a withdrawal of ICRC from Burundi. Novye Atagi, Chechnya – December 17, 1996 – Six ICRC workers are killed in an attack on the local hospital. As a result, ICRC withdraws all expatriate staff from Chechnya. Guatemala, 1996 – One Costa Rican Salvation Army officer is attacked by demobilized guerrilla members while transporting a senior citizen with a broken leg to the hospital. The vehicle was taken. 1997 Somaliland region of Somalia – November 23, 1997 – UN negotiates with clan elders for release of five kidnapped aid workers. Mogadishu, Somalia – November 26, 1997 – All foreign aid workers withdraw from the city following the abduction of two Italian aid workers. Guatemala – 1997 – When returning from mission, one Costa Rican Salvation Army officer