Teach your kids about the persecuted Church.
See and link here.
Sovietisation entailed tremendous hardship for the Catholics of Ukraine.
"The Latin Archbishop of Lvov, a Pole, was brutally expelled and the episcopal See of the little Armenian community was destroyed, but the Ukrainian hierarchy, presided over by the venerable Metropolitan Andrew Szeptyckyj, was not interfered with. In this the Soviets were not showing any deference to religion as such, but were merely respecting the sentiment of the majority of the population who were of Ukrainian origin."
-The Red Book of the Persecuted Church by Albert Galter, 1957.