Global Battlefield Management System Market By Type (Headquarter , Vehicle , Soldier , Computing System , Navigation & Imaging System , and Communication & Networking System), By Application (Computer Hardware Devices , Computer Software , Display Devices , Imaging Devices , Night Vision Devices , Tracking Devices , Wired Communication Devices , Wireless Communication Devices , and IFF), By Region, and Key Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2020-2029