The Ukraine war has been raging for nearly seven months, and the dominant pattern so far has been Russia making slow and incremental gains in territory. But this pattern was abruptly broken over the past week as Ukraine made rapid gains in the north and north-east. Russian troops have been driven out of cities like Kupyansk and Izyum, which are critical from the perspective of military logistics and supply lines. How would the loss of these logistical hubs affect Russia’s military campaign? What enabled Ukraine to make these rapid gains, and do they signify a turning point in the war? How will these losses impact President Vladimir Putin politically back in Russia?