Vladimir Putin blasts the West in combative speech, says Russia remains strong despite 'insane' sanctions

The Russian President gave a lengthy denunciation of countries that he contends want to weaken Russia, including the United States. (AP: Dmitri Lovetsky)

In one of Vladimir Putin's most substantial addresses since Russia's invasion of Ukraine in February, the Russian President used his nation's pre-eminent investment conference as an opportunity to lash out against his Western enemies.