Russian Summer Offensive Gains Ground in Sumy & Donetsk • Sumy Oblast incursions: Russian forces resumed major cross-border operations in early June, capturing key villages like Kostiantynivka (not the city of the same name in Donetsk, which remains under Ukrainian control), Varachyne, Yablunivka, and Novomykylaivka, coming within ~20 km of Sumy city. These strategical moves threaten Ukrainian logistics and open opportunities for envelopment via FPV drones and artillery strikes. • Pokrovsk–To
