Gen. James Mattis, the U.S. Joint Forces Command chief vested with new and unprecedented power to influence the shape of DOD weapon systems accounts, has launched a campaign to ensure the military services are not surprised by programs he plans to fight for during the budget endgame this summer, as the Pentagon finalizes a new six-year investment blueprint. Mattis, recently empowered to critique what he and other combatant commanders deem shortfalls in the military services' budget plans, wants to make...