The Army has ended its effort to develop a cannon that can fire 1,000 miles, which had been one of its 35 priority modernization programs, according to service acquisition executive Doug Bush. Officials were concerned about the cost of developing the cannon at the same time the Army develops missiles that can reach the same ranges, he told the House Armed Services tactical air and land forces subcommittee during a May 17 hearing. “The Army has taken the decision to...