South Sudan's opposition leader Riek Machar is expected to return to Juba to form a unity government led by president Salva Kiir, a crucial step toward ending a violent civil war. However his return to South Sudan has been delayed due to disagreement with the government over the number of troops he can bring and the weapons they carry, under the terms of a peace agreement. VICE News traveled to Machar's rural base in Pagak, South Sudan, to find out what will happen next.