Simplify the following text for a Grade 8 native English-speaking person.
Original: Shangrila Resort Hotel was founded by the late Brig . ( Retd ) Muhammad Aslam Khan , the first commander of the Northern Scouts who liberated the Northern Areas in 1948 .
Simplified: Shangrila Resort Hotel was founded by the late Brig . ( Retd ) Muhammad Aslam Khan , the first commander of the Northern Scouts of the Pakistan Army .