URL copied Image Source : INDIAN ARMY TWITTER Army Day 2021: Why January 15 is celebrated as Army Day in India? Significance and history Army Day 2021: India is celebrating its 73rd Army Day today. Army Day is celebrated on January 15 every year to honor the soldiers of the country, who have set the greatest example of selfless service and brotherhood and more than anything the love for the country. Army Day is celebrated every year at all Army Command headquarters. On the occasion of the 73rd Indian Army Day, the Indian Arm will organise a marathon 'Vijay Run' to commemorate Swarnim Vijay Varsh celebrations of India's resounding victory over Pakistan in 1971.