The establishment of a permanent naval presence in Tartus involves political posturing, An unequivocal sign that Russia, as already forecast by this author in 2012, draws a red line in the Syrian sand. The transformation of Tartus into a permanent Russian base has, however, geopolitical and strategic implications within a wider context than Syria.
The Russian Black Sea fleet in Crimea would have to pass through the Bosporus and the narrow Dardanelles to reach the Mediterranean. This “choke point” is controlled by NATO member Turkey. Moreover, NATO member States have increased their naval presence in the Black Sea since the eruption of the crisis in Ukraine and Russia’s annexation of Crimea, or Crimea’s accession into the Russian Federation.
Which of the two constructs one considers as valid largely depends on whether one interprets international law to the effect that self-determination has primacy over territorial integrity or whether territorial integrity has primacy over self-determination. The outcome is the same; The Russian Black Sea fleet and its access to the Mediterranean has been threatened by the escalation of the situation in Ukraine.