(Editor's Note: This story has been updated with a quote from George Mansfield, vice president and general manager of joint programs for JLTV-maker Oshkosh Defense.) As the Army takes a running start toward preparing for multidomain battle in its fiscal year 2020 budget request -- rocketing to $57 billion for next-generation projects over the five-year defense plan -- the service's vehicle programs are the first to pay the bill, including the new Joint Light Tactical Vehicle. Acting Defense Secretary...