President Trump is asserting the right to unilaterally use the military wherever, whenever and be the sole judge and jury of his own actions.
Why it matters: Of all the unprecedented actions, these might carry the most sweeping consequences — not just now, but for future presidents. The new precedent is being set in real time: The only real limit on Trump appears to be Trump himself. Neither the conservative Supreme Court nor the GOP-led Congress has shown much interest in limiting this executive.