Nearly three weeks have passed since Russian President Vladimir Putin began his invasion of Ukraine, but it still is not clear why he did so and what he hopes to achieve. Western analysts, commentators and government officials have put forward more than a dozen theories to explain Putin's actions, motives, and objectives.
Some analysts posit that Putin is motivated by a desire to rebuild the Russian Empire. Others say he is obsessed with bringing Ukraine back into Russia's sphere of influence. Some believe that Putin wants to control Ukraine's vast offshore energy resources. Still others speculate that Putin, an aging autocrat, is seeking to maintain his grip on power.
While some argue that Putin has a long-term proactive strategy aimed at establishing Russian primacy in Europe, others believe he is a short-term reactionary seeking to preserve what remains of Russia's diminishing position on the world stage.
Following is a compilation of eight differing but complementary ...