A United Nations report says the Ugandan army has provided support to the M23 rebel group operating in eastern Democratic Republic of Congo, a charge Uganda denies. Migrant aid groups say refugees and migrants who risk their lives on dangerous land routes across the African continent are subject to horrific violence, abuse, and exploitation. Members of NATO have said they are committed to expanding its relationship with the African Union, as part of the alliance's efforts to work more closely with partners in tackling security challenges in the Southern Hemisphere.