Shaped charges from coffee grounds? Pentagon science chief describes future of war

When the Pentagon’s science and technology chief looks at Ukraine, he sees a war fought with weapons invented, produced, and fielded since the conflict erupted.“The fact that you can bring relevant capability to the fight, as the Ukrainians and allies have done in the conflict with Russia, that essentially didn't exist at the beginning of the fight,” Joseph Jewell, assistant defense secretary for science and technology, said Tuesday at the Defense One Tech Summit in Arlington,