Simplify the following text for a Grade 9 native English-speaking person.
Original: GarcÃ a Robles received the peace prize as the driving force behind the Treaty of Tlatelolco , setting up a nuclear-free zone in Latin America and the Caribbean .
Simplified: Garcia Robles was the driving force behind the Treaty of Tlatelolco . This treaty established a nuclear-free zone in Latin America and the Caribbean .