Russia shut down airports and temporarily cut mobile internet access for many users in Moscow on Tuesday, as it tightened security ahead of the 9 May Victory Day parade marking the defeat of Nazi Germany. The parade – Russia’s foremost national celebration – has already been scaled back and will proceed without heavy military hardware for the first time in nearly two decades, amid fears of long-range Ukrainian drone strikes. Ukraine has recently demonstrated its ability to penetrate Moscow’s dense air defence systems: on Monday morning, a drone struck a high-rise apartment building just a few miles from the Kremlin. In what appeared to be an effort to shield the military parade, Moscow earlier this month declared a unilateral ceasefire with Ukraine for 8-9 May and warned of a “massive missile strike” on central Kyiv if it were violated. Ukraine dismissed the proposal as a cynical ploy to protect the parade from drone attacks.…