ISLAMABAD (Online) - Pakistan Day parade, the biggest event of March 23, has been cancelled. Sources told this news agency that Prime Minister Yousuf Raza Gilani had given formal approval to the cancellation of the parade on the basis of reasons given by Chairman Joint Chiefs of Staff Committee Gen Tariq Majid. They further told that due to current security situation in the country and owing to the ongoing military operation in South Waziristan, it was not possible to hold the joint parade. They further told that more than 150,000 troops were stationed at the Pak-Afghan border while thousands of troops were deployed for maintenance of security in Swat and Malakand. They further informed that due to the security reasons, the Pakistan Day parade has been cancelled however the rest of the Pakistan Day ceremonies would be held as per schedule. They further said that there was threat of terrorist attack on security forces and moreover, since high profile personalities such as the President, PM, federal ministers, diplomats and a large number of people witness the parade, security issues forced the authorities concerned to cancel the event, the sources further said. It is pertinent to mention here that for the past 3 years the parade has been cancelled. It was held in 2007 at Sports Complex, which was witnessed by the then President Gen Pervez Musharraf.