Complex sentence: Kobzon returned to Donbass one week following the EU's decision, stating that he was on a second humanitarian mission delivering medications to hospitals in Lugansk, and giving another free concert to support local residents.
Split into simpler sentences: Kobzon returned to Donbass one week following the EU's decision. It is reported that he was on a second humanitarian mission delivering medications to hospitals in Lugansk, and giving another free concert to support local residents.