Simplify the following text for a Grade 8 native English-speaking person.
Original: In the second operation , Fall Rot ( Case Red ) , executed from 5 June , German forces outflanked the Maginot Line and pushed deep into France .
Simplified: In the second part of the battle , called Fall Rot in German ( Case Red in English ) , from 5 June , German armed forces circled the Maginot Line to attack the rest of France .