Defence Day (Urdu: یوم دفاع or Youm-e-Difa) is celebrated in Pakistan as a national day on 6 September in memory of those who martyred in the Indo-Pakistani war of 1965 and successful defence of Lahore, Sialkot and other important areas of the country.
Indo-Pakistani war of 1965
On 6 September, both countries openly went to war following a series of minor skirmishes that preceded the 6th, when Pakistan was attacked by India from the Lahore-Burki sector during the dead of night (at 5 am). The war began following Pakistan’s Operation Gibraltar, which was designed to infiltrate forces into Jammu and Kashmir to precipitate an insurgency against rule by India. The five-week war caused thousands of casualties on both sides. It ended in a United Nations (UN) mandated ceasefire and the subsequent issuance of the Tashkent Declaration.
September 6 is marked by the President, Prime Minister and members of the government paying respect to the armed forces.
Further information: Awards and decorations of the Pakistan Armed Forces
Army officers like Captain Sarwar Shaheed, Major Tufail Shaheed, Major Raja Aziz Bhatti Shaheed, Major Shabbir Sharif Shaheed, Major Muhammad Akram Shaheed, Sawar Muhammad HussainShaheed, Lance Naik Muhammad Mehfooz Shaheed,and Havaldar Lalak Jan Shaheed gave sacrifices of their life for pakistan
and were awarded with “Nishan-e-Haider” for their acts of exceptional bravery. Nishan-e-Haider is a highest military award given to brave martyres of Pakistan army those who left remarkable examples of bravery and sacrifice for nation and country.
Celebrations and parade
Army of Pakistan displays the latest missiles, tanks, guns, army aviation helicopters and armament being used by Engineers, Electrical and Mechanical Corps, Army Air Defence, Signals, Army Service Corps and Army Medical Corps live on various places. Everyone is allowed to watch such functions live by going to the specific places. These shows are displayed on national channels as well. National songs and special documents about 6 September 1965 and martyred people of 6 September are displayed on TV. It is told to people how people gave sacrifices for the defense of the country and what is the responsibility of young generation now especially the children who are the future of Pakistan.
The change of guard ceremony takes place at Mazar-e-Quaid, Karachi, where the cadets of Pakistan Air Force Academy present Guard of Honour and take the charge.
source : Wikipedia