Commentary Ukraine and Russia are slugging it out, with heavy losses on both sides. The Russian strategy, such as can be determined, seems to be to surround Ukraine’s main cities and squeeze the Ukrainian government as hard as they can. The Russians also threaten to lop off parts of Ukraine, such as the area around Chernobyl and Kharkiv, both in the northeast of the country. But Odessa also appears to be surrounded in the south, which would be fatal for Ukraine if the Russians took it. The courageous leader of Ukraine, Volodymyr Zelensky, faces some harsh choices. But so does Vladimir Putin, president of Russia. Russia has taken many casualties, with more than 5,000 soldiers reportedly killed already. The Russian currency has all but collapsed, and there’s deep-seated anger in Russia against Putin and his war. Putin needs to wrap this war up fast, or he could be replaced by his adversaries …