Celebrations of Pakistan’s 50th Defence Day are under way across the nation on Sunday as the day commenced with a 31-gun salute in the federal capital and 21-gun salutes in provincial capitals, Radio Pakistan reported. Special prayers were offered for the progress and prosperity of the nation. President Mamnoon Hussain and Prime Minister Nawaz Sharif on the golden jubilee of Defence Day paid tribute to all those who laid down their lives and lost loved ones in the 1965 and 1971 wars and in the ongoing war against terrorism.