Sir: Pakistan these days is under heavy clouds of internal and external challenges. Major Powers are busy at hatching conspiracies to isolate and disintegrate Pakistan. India is in the forefront to defame and destabilise our country as media reports and discussions have revealed. Security establishment, during this time, has a significant role to play in foiling all ill plans perpetrated against the country. In this need of the hour, we as a Pakistani nation has to come under one umbrella and stop being divided. If we are united, then no power on earth can destabilise us. History witnessed that when Muslims of the sub-continent united, Quaid Azam said, “No power on earth can prevent Pakistan.” We need same enthusiasm and love of the land and its nation so that no power on earth can harm Pakistan. AFTAB AHMED JUNEJO Tando Jam