The psychodrama in Washington grows ever more bizarre. John Kerry, the Secretary of State, hyperventilates about the disasters that will ensue if the United States does not bomb Syria - but President Barack Obama, having said last year that the use of chemical weapons was a "red line" that Syria
Cost of Syria strike too high
Subscribe to listen
Gwynne Dyer
Russian objections to Obama's plan for unilateral military intervention in Syria are routinely dismissed in Washington. Moscow is just trying to protect its only major ally in the Arab world, goes the US argument. It is cynically denying the clear evidence that it was Assad's regime, not rebel forces trying to trigger an American attack on Assad, that used chemical weapons in the Damascus suburbs last month.
But in fact there is no clear proof of that, and simply asserting that it is true doesn't make it so. Moreover, the Russians are genuinely alarmed that the US is planning to ignore international law in order to pursue its own goals, and they will respond if it goes ahead.
As the weaker power, Russia takes the United Nations ban on aggressive war more seriously than the United States.
"The use of force against a sovereign state is only (permissible) if it is done for self-defence ... or under a decision made by the UN Security Council," said President Vladimir Putin last week, and "those who act otherwise put themselves outside the law".
So when Putin says that "we have our plans" for what to do if the US attacks Syria, it would be wise to take him seriously. Those plans almost certainly involve supplying the Syrian regime with S-300 anti-aircraft systems that can shoot down the Tomahawk cruise missiles with which Washington plans to strike Syrian targets.
Russia announced on September 4 that it has suspended the delivery of S-300 missiles that Syria had ordered several years ago, and that no complete systems were yet in the country. But Syrian crews have already been trained on the system in Russia, and the weapons could be up and running quite fast if Moscow changes its mind.
"If we see that steps are taken that violate the existing international norms," said Putin, "we shall think how we should act in the future, in particular regarding supplies of such sensitive weapons to certain regions of the world." So if the Tomahawk missiles fly, the United States may find S-300 missiles taking them down.
Then, in order to suppress Syria's air defences, the US will have to commit manned aircraft to Syrian airspace, and some of them will get shot down by recently supplied Russian missiles - and we will be setting precedents far more dangerous and long-lasting than some local use of poison gas in a country torn by civil war.
Gwynne Dyer is an independent journalist whose articles are published in 45 countries