Parts of the Democratic Republic of the Congo are under siege by a Rwanda-backed rebel group. The violence has killed UN peacekeepers, overwhelmed hospitals, displaced hundreds of thousands and sparked fears of a wider regional conflict. Amna Nawaz discussed more with Thérèse Kayikwamba Wagner, the Congolese minister of foreign affairs. PBS News is supported by - https://www.pbs.org/newshour/about/funders