Built largely with Western donations, the spa-like retreat provides soldiers with counseling, aromatherapy and more. But most soldiers are there for no more than a week.
Former service members and combat medics from other countries are in Ukraine to train civilians. They typically have just days with new conscripts before they are sent to the front.
Catch up on key developments and the latest in-depth coverage of Russia's invasion of Ukraine.
Russia and Ukraine are believed to have suffered equally horrific losses in the war. But when it comes to troop strength, the math is on Russia's side. Its population is four times Ukraine's.
The coming winter may provide Ukraine with more opportunities to retake land from Russia, Western military analysts say. It will also bring a change in battlefield tactics.
Many soldiers from the southern port city of Kherson spent months trying to liberate their homes. The Russian retreat last week was a major blow to Moscow's war effort.
Last month, Ukrainian forces pushed the Russians out of the village of Mala Rohan. NPR goes inside the warehouse Russia had used as temporary barracks.
Military experts say Russia would face stronger resistance from Ukraine than it did when it annexed the Crimean Peninsula seven years ago