Numerous DDRRR operations in collaboration with the civilian component were conducted in the beginning of 2003. Before the start of the transition, UN soldiers were deployed along the front lines. A vast redeployment to the East started. The four coordination centres and 22 bases in the western part of the country were shut down. Over a hundred observers were redeployed and Uruguayan contingents arrived in Bukavu and Lubero. Observer teams monitored serious combat and human rights violations in Ituri. In April 2003, 800 Uruguayan soldiers were deployed in Bunia under Resolution 1484. In the same month an observer died in a mine explosion. In May 2003 two military observers were savagely killed by a militia.