Original: Strategically located at the crossroads of major north-south and east-west trade routes , it has attracted a succession of invaders including Alexander the Great , in the fourth century B.C. Currently , the United States continues the global war on terrorism there .
Simplified: The area towards the Khyber Pass across the Safed Koh are in eastern Afghanistan ; at the top the height is 1070 m. \/O/ 3,509 ft. at Landi Kotal .