Too little, too late
There are many dimensions of the Crimean crisis. We can surmise that it may be an indication of Russia’s yearning to assert its status as a world superpower in the long run, but I think the crisis basically aggravated because of the lack of will on the part of world leaders to take a timely and prompt action. When the crisis started, there were signs of what was about to happen. Russia’s expansionist designs were clear as day. But the world leaders failed to grasp the seriousness of the issue at hand. They banked on mere rhetoric to do the job of preventing Russia from interfering in the internal matters of Ukraine. What was required of them was a firm and timely action to stop Russia.
They failed to do that and everyone
knows what followed. While the secession of Crimea from Ukraine has given a boost to Russia, the episode has damaged the U.S. the most in terms of its credibility and capacity to maintain its status as a world leader. Late as they may be, it is hoped that the sanctions against Russia would prevent it from undertaking a similar path in the future.