Original sentence: Both Pan-Germanism and Lebensraum theory viewed Poles as an obstacle to German hegemony, prosperity as well as future expansion of the German state.Some Pan-Germanists believed that Germans were superior to other people - including Slavs, whom they viewed as inferior to the German "race" and culture
Edited sentence: Both Pangermanism and Lebensraum theory viewed Poles as an obstacle to German hegemony, prosperity as well as future expansion of the German state.Pangermanists believed that Germans were superior to other people - especially Slavs, whom they  viewed as inferior to the German "race" and culture