The United States put rules on a group. This group sent many old soldiers from Colombia to Sudan. These soldiers fought with a group called the RSF. The RSF did bad things. The group has four people and four companies. They sent fighters to the RSF. This made problems in Sudan worse.
Last year, people saw Colombian fighters in Sudan. The U.S. Treasury said about the new rules. A man named Álvaro Quijano is key. He is from Colombia and Italy. He may have found soldiers from the UAE.
These fighters are experienced. They fought in Colombia. They know how to use weapons. They also learned about drones. They may have taught child soldiers.
Money for this group was tricky. Mateo Duque managed companies. These companies paid the soldiers. His companies sent money from the U.S. Mónica Muñoz also helped move money.
Colombia said sorry for its people. The U.S. rules stop the RSF's fighting. The U.S. calls this a war crime. The rules stop their money. This will help Sudan.