Simplify the following text for a Grade 8 native English-speaking person.
Original: Meanwhile PaveliÄ and several hundred UstaÅ e left their camps in Italy for Zagreb , where PaveliÄ declared new government on 16 April 1941 .
Simplified: Meanwhile PaveliÄ and several hundred UstaÅ e left their camps in Italy for Zagreb , where PaveliÄ set up his government on 17 April .