Wikipedia
Jonglei is a state of South Sudan. On October 2, 2015, the President Salva Kiir Mayardit decreed the creation of the new Jonglei State along with 27 other states replacing 10 previous states. The earlier Jonglei state comprised three counties of Bor, Twic East and Duk and was the largest state by area before reorganisation, with approximately 122,581 km, as well as the most populous according to the controversial 2008 census conducted during present-day South Sudan's second period of autonomy. Bor is the capital of the state.
In May 2016, Jonglei was reorganised and eight new counties were created, taking the total number of counties to 11. Bor county was divided into Bor South, Bor East, Bor Centre, Bor West and Bor North. Twic East was divided into Twic North, Twic Center and Twic South. Duk was divided into Duk Padiet, Duk Payul and Panyang.
The current governor of Jonglei State is Colonel Philip Aguer Panyang. Jonglei seceded from Sudan as part of the Republic of South Sudan on 9 July 2011. In the 21st century, Jonglei has been marred by clashes between tribes of the region which the UN estimated in May 2012 had affected the lives of over 140,000 people, and has been heavily influenced by the broader South Sudanese conflict since December 2013.