Welcome to today's Space Briefing -- a biweekly roundup of the latest national security space news. Top Story Pentagon releases new strategy to counter, deter threats in space A new Defense Space Strategy released this week highlights four priority lines of effort the Pentagon plans to pursue in order to ensure it is positioned to "compete, deter and win" against future threats: build a comprehensive military advantage in space; integrate military spacepower into national, joint and combined operations; shape the...