Ukrainian troops are consolidating their positions in the southern Russian region of Kursk, President Volodomyr Zelensky said on Sunday, as Moscow’s forces advanced in eastern Ukraine. “The operation is unfolding exactly as we expected,” said Zelensky in Kiev, almost two weeks after Ukrainian forces launched a surprise cross-border offensive. “Now, we are strengthening our positions,” he added. Ukraine is believed to be in control of dozens of villages and towns in Kursk, and it has also been capturing Russian prisoners of war, hoping to exchange them for Ukrainian soldiers and civilians held …