A few days later, Himars hit a Russian military barracks where new recruits were sleeping, inflicting heavy losses, Lt. Koval said. In a third attack he described, the Ukrainians directed all four Himars at Russian positions in one Ukrainian town, sending 24 rockets against targets in the same area. Another strike struck in the town of Zymohirya, some 30 miles behind the frontline, Lt. Koval said. Due to the $155,000 price tag per rocket, the Ukrainians are focusing the firepower on high-value targets like military headquarters, weapons depots and barracks rather than individual Russian tanks or artillery systems. They expect...