A bit of history. The Dormition Cathedral of the Kyiv Pechers’k Lavra was once blown up on Moscow’s orders before — in 1941, when retreating NKVD officers booby-trapped much of central Kyiv and killed thousands of civilians to assassinate a few Germans.
Then, just as with the Katyn massacre of Polish officers in 1939, the Soviet Union blamed the destruction of the Lavra on the Nazis. The Dormition Cathedral was only fully rebuilt after Ukraine became independent.