Children from Ukraine have been put in schools and cadet academies with military training oriented toward the fight against their own homeland, the Yale study found. Russian law enforcement agencies have also run programs to care for Ukrainian children, it found. The study, by the Humanitarian Research Lab at the Yale School of Public Health, documented at least 210 sites in Russia and in occupied areas that hold Ukrainian children. Among them are military cadet schools; camps with a Russian nationalist orientation, such as a network called Warrior; and Russian Orthodox monasteries, schools, summer camps, orphanages, and hospitals. That was...