Ukraine and Venezuela are exploding with popular uprisings against oppressive regimes. In Ukraine the people have triumphed as the government has been driven from power. In Venezuela the struggle continues, but freedom cannot indefinitely be suppressed. In both cases the US has zero influence due to the deliberate weakening of American power by the current administration, which is further seeking to reduce the Army to below-WWII levels. The US is no longer respected in much of the world, and it will take considerable effort to recover from this disastrous decline. But you would not know much of this from the coverage in American media.
This is not to suggest that there ought to be military intervention, or the threat of it, particularly in Ukraine, where the situation is decidedly complex. The Russians are mobilizing forces on the border of Ukraine, but there is little we can do about it. The problem in Ukraine is the western half is mostly Ukrainian and oriented toward Europe. In the eastern half there is a large, and in some areas dominant Russian population. Although this may have come about from Soviet efforts to export Russians to the region. at this point it is an unchangeable reality. The complexity of the situation arises from the fact that they share a common history flowing from the city of Norse-controlled Kiev over a thousand years ago, after obtaining their alphabet and Christian religion from the Byzantine Greeks. Thus, although it is in present day Ukraine, Kiev is also the spiritual home of the Russians.
But after Mongol invaders destroyed much of what was in their path there was some divergence. Western Ukraine was occupied by Poland in 1349 and then Lithuania for centuries until the eastern portion reverted to Russia in 1654. It was subsequently divided between Russia in the east and the Austro-Hungarian empire in the west, and after World War I was incorporated as a republic within the USSR. In 1954 Russia ceded Crimea to Ukraine, clearly as part of the Russian dominated union never anticipating it would not be under their control. Modern independence only came after the break-up of the Soviet Union in 1991.
Thus, not surprisingly the Russians consider the status of Ukraine to be in their vital interests, and realistically an independent Ukraine can only exist as long as Russia tolerates it. The European Union is favored by western Ukrainians, but the military power of the EU is nonexistent, and integration with Ukraine may only be possible if Russia itself becomes an EU member. While we may sympathize with the democratic will of the people, given its leadership vacuum there is not much the west can or should do. Warnings from John Kerry are laughable, and at this point, for better or worse, Vladimir Putin is going to determine the outcome.
Venezuela is a different story. The repressive socialist regime there is a posturing enemy of the US and a troublemaker in the region. It has gone so far as to align itself with Iran. The standard of living has declined as one would expect it to in a country with all out socialism as its goal and the people appear to have finally had enough. Here we should intervene, not militarily, but by providing full support to the opposition, especially since the regime will accuse us of doing that anyway. For Venezuela is located in what we used to consider our own back yard. Deposing the Chavista regime is in our national interests and would be a severe blow to the evil satellite regimes that have sprung up with their aid. But given the sympathies of the current administration it would be a pleasant surprise if they actually did anything.