A Ukrainian Himars attack on a town in Russia-held eastern Ukraine flattened completely destroyed a vast building holding several hundred Russian mobilised men inside. Early estimates from Kyiv and from pro-Russian sources suggest the New Year’s Eve attack on the barracks in Makiivka could be Russia’s single biggest loss of life since the start of the invasion last February. The Ukrainian military on Monday mocked Russia over the attack on a former school building in Makiivka, a suburb of Donetsk, attributing it to “smoking in inappropriate places” and claiming that it killed “about 400” people. A former Ukrainian separatist commander...