Some 28 Ukrainian commanders are facing a criminal investigation over military failures at the start of Russia’s recent offensive near Kharkiv. Ukraine’s State Investigation Bureau has launched an investigation, Ukrainian media reported on Saturday. The officers are accused of failing to properly organize the defence of Ukraine’s border with Russia. The proceedings were entered into the official court register. After the Russian attack in the area on May 10, the Ukrainian army had to evacuate its forward positions and several villages, with high losses of soldiers and material. The 28 officers…