The Pentagon is revealing a sample of new disruptive combat capabilities -- all derived since 2012 from utilizing existing weapon systems in innovative ways -- as part of a campaign to bolster conventional deterrence by signaling Russia and China, as well as American allies, that the U.S. military has a growing "strategic surprise" portfolio of never-before-seen means to strike and defend. One aim of the effort -- which involves revealing formerly classified projects led by the Strategic Capabilities Office in...