POKROVSK REGION, Ukraine (AP) — A dire shortage of infantry troops and supply routes coming under Russian drone attacks are conspiring against Ukrainian forces in Pokrovsk, where decisive battles in the nearly three-year war are playing out — and time is running short.

President Donald Trump says his administration has already had “very serious” discussions with Russia about its war in Ukraine and that he and Russian President Vladimir Putin could soon take “significant” action toward ending the grinding conflict.

Meanwhile, in Washington, Secretary of State Marco Rubio said the war is setting Ukraine back 100 years. Zelenskyy responded by inviting him to visit — to witness firsthand the destruction, but also see Ukraine's technological advancements, particularly in drone warfare, where he says Ukraine remains decades ahead of the world.