Jonglei clashes (2025–present)

Jonglei clashes
	Part of aftermath of the South Sudanese Civil War
	; Territorial control as of 2021
Date	24 December 2025–present
Location	Jonglei, South Sudan
Result	SPLA-IO captures several towns in Jonglei; SSPDF launches Operation Enduring Peace to regain lost territory;
Belligerents
SPLA-IO SPLA-IO Kit-Gwang; SSOA defectors; Nuer White Army	South Sudan SSPDF Agwelek forces; ;
Commanders and leaders
Riek Machar (arrested); Nathaniel Oyet; Simon Gatwech Dual; Ter Chuol Gatkuoth	Salva Kiir; Santino Deng Wol; General Johnson Olony
Strength
Unknown	Unknown
Casualties and losses
>46	>150
	140+ civilian deaths, 230,000 people displaced

Beginning in December 2025, and intensifying in 2026, clashes began between the Sudan People's Liberation Movement-in-Opposition (SPLA-IO) and South Sudan People's Defence Forces (SSPDF) within Jonglei State, South Sudan. The SPLA-IO launched an offensive in late December to capture several government strongholds within the majority Nuer Jonglei State in response to the continued imprisonment and treason trial of their leader Riek Machar after the 2025 Nasir clashes. On 25 January 2026, the SSPDF announced the launch of Operation Enduring Peace to retake territory from the SPLA-IO.

The clashes have led to fears that South Sudan would return to their civil war, which ended in 2020 with a power-sharing agreement, although Kiir's government claims that South Sudan would not return to civil conflict. It has also led to fears that the nation would be dragged into the civil war in neighboring Sudan.