Over the weekend, Ukrainian forces launched what Moscow's mayor called the largest drone assault on the Russian capital since the war began — a coordinated, multi-point barrage that reached deep into the heart of Russian power. The attack is less a single event than a milestone: evidence that Ukraine has steadily extended its reach from front-line skirmishes to strikes on the symbolic center of its adversary. In the long arc of this conflict, the ability to bring the war to Moscow's doorstep marks a shift in what is possible, and in what both sides must now reckon with.