The United Nations Security Council today unanimously approved a new European Union-UN peacekeeping force to be sent to Chad and the Central African Republic.   The new troops are being sent to protect civilians in the Darfur area.  The purpose of the new mission, called a “multidimensional presence,” is to end cross-border incursions into villages and refugee camps by fighters from Sudan.  The mission is authorized to operate for an initial period of one year.