As the world watched Ukraine’s stunning cross-border offensive into Kursk Oblast, celebrating an unexpected blow to Moscow, Russian forces advanced with alarming speed in Ukraine’s east. One month later, new front lines in the Russian border region formed in the wake of the Kursk incursion have begun to stabilize, but in Donetsk Oblast, Russia has continued to advance on the key city of Pokrovsk. Speaking remotely at a major forum of Ukraine’s leadership on Aug. 27, Oleksandr Syrskyi, Commander-in-Chief of Ukraine’s Armed Forces, made a surprisingly candid admission. Forcing Russia to peel awa…