During September 1993 to April 1994 he served as commanding officer of the Nordic battalion, part of the United Nations Protection Force, which consisted of the first Swedish battalion to be deployed in Yugoslavia during the Bosnian War. The battalion consisted of 840 soldiers in three mechanized infantry companies and one staff and tross company. Together with a Danish tank company and a Norwegian field hospital, it formed the battalion Nordbat 2. The battalion headquarters was in Živinice outside Tuzla. Its area of responsibility started north in the Posavina corridor 10 kilometres south of Brčko, to some 10 kilometres south of Vareš in central Bosnia. Henricsson and his soldiers became known for redrawing the rules of international peacekeeping by aggressively protecting civilians, tactics not popular among U.N. officials. His robust approach impressed his UNPROFOR commander Michael Rose, the press corps, his Danish colleagues in Nordbat 2 and the local parties. At home, his robust approach did not go down well with the traditionalists, who accused the Swedish contingent of being trigger-happy and too aggressive. The result on the ground proved the critics wrong, however, and Henricsson's approach was eventually codified in the Swedish peace support operations doctrine published in 1997. In Vareš, Henricsson and his soldiers saved the lives of 200 men and boys detained in a school. On 2 April 1996, Henricsson testified against Ivica Rajić in the International Criminal Tribunal for the former Yugoslavia for his involvement in the Stupni Do massacre.
Later career
Back in Sweden, Henricsson continued commanding the Södermanland Brigade until 1994 and was then commanding officer of the Eastern Army Division from 1994 to 1999. He was head of the OSSE Department for Regional Stabilisation in Sarajevo from 1999 to 2001. Since 2002, brigadier Henricsson has been head of the Department of Leadership and Management at the Swedish Defence University. On 22 February 2006, Henricsson was appointed as the new head of the Sri Lanka Monitoring Mission effective from 1 April 2006, replacing Brigadier Hagrup Haukland. He left the position on 1 September 2006.
Other work
Henricsson has appeared in TV3's television programme Grannfejden as mediator as well as in TV8's Nyhetsfajten. Henricsson became a member of the Royal Swedish Academy of War Sciences in 1996 and served four years as chairman of the Land Warfare Studies Department. He is also a board member of Södertälje Hospital.
Awards and decorations
Swedish Armed Forces International Service Medal of Reward in gold with swords with the citation: "As commander repeatedly demonstrated personal courage which led to significant good example during service in September 1993-April 1994"
Royal Swedish Academy of War Sciences' Medal of Reward in gold