<prompt> unaweza kugeuza matini haya ya swahilikwa kiingereza?jeshi la sudan kusini - spla lilianzisha operesheni kubwa dhidi ya wanajeshi waasi mnamo mwezi aprili, huku kukiwa na mapigano mikali katika wilaya ya mayom, kaskazini mwa jimbo la unity, ambalo wakati mmoja lilikuwa eneo muhimu kwa uzalishaji wa mafuta.  <response>: the government side, the sudan peoples liberation army spla, launched a major offensive against rebel forces in april, with fierce fighting in northern unity states northern mayom district, once a key oil producing area. 