Complex sentence: In June 1995 the group working together with Egyptian Islamic Jihad made a carefully planned but unsuccessful attempt on the life of president Mubarak leading to a massive and ruthless crackdown on GI members and their families in Egypt.
Split into simpler sentences: In June 1995 the group working together with Egyptian Islamic Jihad made a carefully planned but unsuccessful attempt on the life of president Mubarak. This lead to a massive and ruthless crackdown on GI members and their families in Egypt.