M23 rebels claim they now control the Congolese city of Goma—an act Congo's government described as a 'declaration of war.'

Residents of eastern Congo's largest city of Goma greeted the arrival of Rwanda-backed rebels with trepidation on Monday, some staying indoors and others coming out to cheer in what one called a "show" of happiness.

Fighting between M23 and Democratic Republic of the Congo forces has displaced 400,000 since the start of this year, according to the United Nations