Ukrainian Defense Intelligence Agency officials claim that Major General Vitaly Gerasimov, of the famed “Gerasimov Doctrine” framing Russian military thinking, was killed near Kharkiv with more of the Russian officer corps.

The Gerasimov Doctrine, despite claims to be a meaningless quote taken out of context by a journalist, has taken on a life of its own in describing the new paradigm of modern warfare that is far more expansive than previous iterations, focusing on introducing new forms of information, economic and technological warfare to weaken and defeat foes.

This strike represents a major blow to the Russian invasion effort including its ideological base. Ukraine’s SPRAVDI today has claimed that it has downed 52 fighter jets and 69 helicopter since the invasion began, suggesting that Russian losses are mounting quickly.