Good for the Gander

With Greece battling the EU to change their financial policies; Greece working with Israel as the Turks turn away from Israel; Russia setting up a naval base in Syria; Turkey taking the lead in opposing Russia's ally, Assad; and Russia working more closely with Israel over energy resources, could we see a major Russian play for the loyalty of Greece?

Would Greece default on their debts to the world, and pull out of NATO as well as the EU, if Russia offered to back Greece's economy and finance (and shield from Turkey) projects to exploit off-shore Greek (and Greek Cypriot) oil resources? Could this flip in foreign policy be seen in Athens as the solution to Greece's financial and diplomatic problems?

Would Russia like to get our bases on Crete to support their eastern Mediterranean goals--and stick it to us in the process with a little payback for America winning the Cold War and poaching the former Soviet empire for NATO expansion? (OK, asked and answered.)

Could the Truman Doctrine be rendered null and void?