A cautious calm has settled over the eastern Democratic Republic of the Congo (DRC) city of Uvira in South Kivu province, as residents begin emerging from their homes following its capture by M23 rebels. The capture earlier this week threatens to derail a United States-brokered peace agreement, signed with much fanfare and overseen by President Donald Trump a week ago, between Congolese and Rwandan leaders, with Washington accusing Rwanda on Friday of igniting the offensive.