Ukrainian soldiers left the town of Siversk. This was in eastern Ukraine. The army said this on Tuesday. They want to protect their soldiers. They also want to keep their army strong. Russia had more soldiers and weapons. This was a big reason to leave.
Siversk was important for Ukraine's defence. Russia attacked for many months. They used small groups of soldiers. Ukraine said Russia had a big advantage. So, they decided to leave the town. They did not want to lose more soldiers.
Ukraine said they hurt many Russian soldiers. But Russia now has Siversk. People worry about other towns. Sloviansk and Kramatorsk are in danger now. Siversk helped protect these cities. It stopped Russia from moving forward.
Ukraine's army can still attack Russian soldiers. They want to stop Russia moving into Ukraine. The fighting shows Russia's problems. But taking Siversk is a big step for Russia.
Ukraine wants to save soldiers' lives. They want to keep their army fighting. This is more important than one town. Ukraine must make new plans now. This will affect the war.