Simplify the following text for a Grade 10 native English-speaking person.
Original: It borders Pakistan 's North-West Frontier to the west , Afghanistan and China to the north , Indian-administered Jammu and Kashmir to the east , leading to the frozen wastes of the Siachen glacier .
Simplified: It borders Pakistan 's North-West Frontier to the west , Afghanistan and China to the north , Indian-occupied Jammu and Kashmir to the east , leading to the frozen wastes of the Third Pole .