Simplify the following text for a Grade 12 native English-speaking person.
Original: The National Security Council was created by then-President and former Chief of Army Staff ( Pakistan ) General Pervez Musharraf in April 2004 under the National Security Council Act .
Simplified: The National Security Council was created by then-President and former Chief of Army Staff General Pervez Musharraf in April 2004 under the National Security Council Act .