"Don't underestimate your enemy. That's never a good place to start," George said at a forum in Washington on Thursday, adding that Moscow had "done very well by pumping money and energy into [its] industrial base," as quoted by the Military Watch Magazine.
He also said that Russian forces "are adapting and they are learning," pointing to the Russian advances in drones, loitering munitions and electronic warfare despite the Western sanctions aimed specifically at undermining the country's defense industrial base.
The Kremlin has consistently warned against the West's continued arms deliveries to Ukraine, saying that they only prolong the conflict, adding that Western military equipment will be eventually destroyed. Moscow also cautioned that NATO countries “are playing with fire” by providing Kiev with arms.