Russian Forces Seize Nine Villages, Amid ‘Difficult Situation’ for Ukraine

But it will take months for many of these supplies to reach the frontline. Russia is taking advantage of this time gap by launching this offensive push, says Oleksandr V. Danylyuk, an expert in Russian multidimensional warfare at the London-based RUSI think-tank. “They believe that they have a window of opportunity during these next few months, and they will do the best to achieve more territorial gains,” he tells TIME. “It's clear that Ukraine is in a critical shortage of ammunition specifically and the most important part of military capabilities in this war is artillery.”