Our greatest adversaries right now are our own fellow Americans, riled up by a decade of GOP tribalism and identity based on shared hatreds. Our international adversaries don't fight our military, they confuse and manipulate our own citizens to weaponize their votes against us. This is what the NRA and Christian right have been doing for years--sowing distrust. Now nations are following suit. We need to deal with our own country's suicidal impulses. No new F-35 can protect against our own neighbors.