Some 10,000 to 20,000 troops comprising the Ukrainian army in Bakhmut are now trapped. Reports say that the city is operationally encircled with diminishing chance of a breakout. To the west of Bakhmut is a lot of open country and not much to prevent a Russian advance all the way to the Dnieper River. There is no hard evidence yet that the Ukrainian army has prepared a second line of defense. This means the way may be open for a possible major offensive by Russian forces. Whether that will happen and what Russia’s goals are remain to be seen. Most...