KYIV, Ukraine (AP) — Ukrainian forces scored more gains in their counteroffensive across a broad front Monday, advancing in the very areas Russia is trying to annex and challenging its effort to bolster its military with fresh troops and its threats to defend incorporated areas by all means, including with nuclear weapons. In their latest breakthrough, Ukrainian forces penetrated Moscow’s defenses in the strategic southern Kherson region, one of the four areas in Ukraine that Russia is absorbing. Ukraine’s advances have become so apparent that even Russia’s Defense Ministry spokesman Igor Konashenkov, who usually focuses on his own military's successes...