SPLM in the government and the former detainees agreed to bring peace in South Sudan.
SPLM Political Bureau Spokesperson Akol Paul Kordit told journalists on Tuesday that they recommitted to implement the Arusha Agreement, calling on Opposition to join the process.
Mr Kordit government unfrozen bank accounts of the former detainees allowed them to Juba with security from South Africa.
The spokesperson says the arrival of the former detainees is an implementation of the Arusha Agreement.