GST 2.0 reforms simplify rates, remove defence taxes, and cut GST on drones, boosting the Indian Army's logistics. Savings of ₹15,000 to ₹25,000 crore annually improve spares, batteries, and convoys, enhancing readiness by 15 to 20%. Faster supply chains, deeper stockpiles, and tech-driven sustainment modernise operations, strengthening India's defence posture without straining fiscal resources.