Jaipur, May 9: Over 25,000 soldiers of the Indian Army on Wednesday concluded their month-long military drill, sharpening their combat skills to face all contingencies, including nuclear or biological attacks, and battling above 45-degree heat and sand storms in hot and dry deserts near the Pakistan border in Rajasthan. An army spokesperson said modern war fighting equipment including tanks, attack helicopters, drones and fighter aircraft were used in the exercise Vijay Prahar by Army’s South Western Command.