Why Ugandan troops are causing controversy in South Sudan

South Sudan's Vice President Riek Machar addresses a news conference in Juba, South Sudan April 5, 2020.

Photo credit: Reuters

The presence of Ugandan troops in South Sudan is provoking controversy, as rifts widened this week between coalition partners in the peace deal government.

First Vice President Riek Machar has accused Uganda of violating a United Nations arms embargo by entering South Sudan with armoured and air force units and carrying out air strikes across the country.