Riek Machar, South Sudan’s Vice-President warned that until a unified army is formed, elections will not be held.
“If you do not have unified forces, where will you get security for the elections?” asked, Machar while addressing members of his party in the capital Juba.
In February last year, President Salva Kiir and Machar formed a unity government to end conflict between their rival forces and agreed to form a unified army of 83,000 troops.
Civil war broke out in 2013 when Kiir and Machar fell out, leading to a conflict that has displaced some 4 million people.
Last month, President Kiir announced that elections would take place at the end of the transitional period in 2023.
Other conditions listed by the vice president that he wanted fulfilled before elections could be held is the return of millions of refugees from neighbouring countries, a nationwide census and a permanent constitution.