 Complete the following phrase:  The restoration of a rebel alliance in Unity State resulted in growing insecurity in the Block 5A oilfield. Lundin Petroleum suspended opeations at Thar Jath, forcing the government to launch new costly offensives in Unity State in 2002. The offensives proved to be successful enough to serve as a model for other military operations. Fighting continued, and allegiances continued to shift in Unity State. In particular, Gadet would play out the SPLA and the government against each other to gain power, and eventually fully defected back to the pro-government forces. The Second Sudanese Civil War ended in 2005, and South Sudan became independent in 2011. Many issues of the conflict remained unresolved, and most southern warlords such as Gadet continued to maintain their private armies. The warlords occasionally revolted, and South Sudan remained politically unstable. The country descended into 