The Army has canceled plans to buy newly built AH-64E Apache Guardian attack helicopters over the next five years, pushing their acquisition beyond fiscal year 2018 and exacerbating a shortfall in the service's combat helicopter force structure. Army Secretary John McHugh and Chief of Staff Gen. Ray Odierno previewed the fiscal year 2014 budget decision in a March 4 equipment modernization strategy obtained by InsideDefense.com . "We assume risk by deferring new-build AH-64Es beyond FY-18; currently, we are short 84...