Analysis-From the Kremlin, Putin ponders war and peace

FILE PHOTO: Russian President Vladimir Putin chairs a meeting with members of the Security Council via a video link at the Kremlin in Moscow, Russia March 11, 2022. Sputnik/Mikhail Klimentyev/Kremlin via REUTERS

LONDON (Reuters) - As Vladimir Putin looks out from behind the Kremlin's red walls, Russia's paramount leader of 22 years has a riddle to solve: how to win a war in Ukraine that the West says he has already lost.

Three weeks into its invasion, Russia is battling fierce resistance from Western-armed Ukrainian forces. It has yet to achieve its stated aims and its heavily sanctioned economy faces the deepest crisis since the 1991 fall of the Soviet Union.