Armed groups are likely committing ethnic cleansings and atrocities in Darfur — again

International impunity helped allow a power struggle in Sudan to spiral into ethnic violence.

Twenty years ago, American celebrities like George Clooney and Ryan Gosling urged us all to “Save Darfur” from the brutal conflict and ethnic cleansing campaign occurring under Sudanese leader Omar al-Bashir.

Bashir is now gone, but the militias...