If you want to understand what's happening in Syria ...

Many times I've mentioned the foreign-policy assessments of William R. Polk, at right, who first wrote for the Atlantic (about Iraq) during Dwight Eisenhower's administration, back in 1958, and served on the State Department's Policy Planning staff during the Kennedy years. He now has sent in a detailed analysis about Syria.

Polk wrote this just before President Obama switched from his go-it-alone policy and decided to seek Congressional approval for a Syrian strike. It remains relevant for the choices Congress, the public, and the president have to make. It is very long, but it is systematically laid out as a series of 13 questions, with answers. If you're in a rush, you could skip ahead to question #7, on the history and use of chemical weapons. But please consider the whole thing when you have the time to sit down for a real immersion in the implications of Congress's upcoming decision. It wouldn't hurt if Senators and Representatives read it too.

Syria has been convulsed by civil war since climate change came to Syria with a vengeance. Drought devastated the country from 2006 to 2011. Rainfall in most of the country fell below eight inches (20 cm) a year, the absolute minimum needed to sustain un-irrigated farming. Desperate for water, farmers began to tap aquifers with tens of thousands of new well. But, as they did, the water table quickly dropped to a level below which their pumps could lift it.

In some areas, all agriculture ceased. In others crop failures reached 75%. And generally as much as 85% of livestock died of thirst or hunger. Hundreds of thousands of Syria’s farmers gave up, abandoned their farms and fled to the cities and towns in search of almost non-existent jobs and severely short food supplies. Outside observers including UN experts estimated that between 2 and 3 million of Syria’s 10 million rural inhabitants were reduced to “extreme poverty.”

The domestic Syrian refugees immediately found that they had to compete not only with one another for scarce food, water and jobs, but also with the already existing foreign refugee population. Syria already was a refuge for quarter of a million Palestinians and about a hundred thousand people who had fled the war and occupation of Iraq. Formerly prosperous farmers were lucky to get jobs as hawkers or street sweepers. And in the desperation of the times, hostilities erupted among groups that were competing just to survive.

Survival was the key issue. The senior UN Food and Agriculture Organization (FAO) representative in Syria turned to the USAID program for help. Terming the situation “a perfect storm,” in November 2008, he warned that Syria faced “social destruction.” He noted that the Syrian Minister of Agriculture had “stated publicly that [the] economic and social fallout from the drought was ‘beyond our capacity as a country to deal with.’” But, his appeal fell on deaf ears: the USAID director commented that “we question whether limited USG resources should be directed toward this appeal at this time.” (reported on November 26, 2008 in cable 08DAMASCUS847_a to Washington and “leaked” to Wikileaks )

Whether or not this was a wise decision, we now know that the Syrian government made the situation much worse by its next action. Lured by the high price of wheat on the world market, it sold its reserves. In 2006, according to the US Department of Agriculture, it sold 1,500,000 metric tons or twice as much as in the previous year. The next year it had little left to export; in 2008 and for the rest of the drought years it had to import enough wheat to keep its citizens alive.

So tens of thousands of frightened, angry, hungry and impoverished former farmers flooded constituted a “tinder” that was ready to catch fire. The spark was struck on March 15, 2011 when a relatively small group gathered in the town of Daraa to protest against government failure to help them. Instead of meeting with the protestors and at least hearing their complaints, the government cracked down on them as subversives. The Assads, who had ruled the country since 1971, were not known for political openness or popular sensitivity. And their action backfired. Riots broke out all over the country, and as they did, the Assads attempted to quell them with military force. They failed to do so and, as outside help – money from the Gulf states and Muslim “freedom fighters” from the rest of the world – poured into the country, the government lost control of over 30% of the country’s rural areas and perhaps half of its population. By the spring of 2013, according to the United Nations High Commission for Refugees (UNHCR), upwards of 100,000 people had been killed in the fighting, perhaps 2 million have lost their homes and upwards of 2 million have fled abroad. Additionally, vast amounts of infrastructure, virtually whole cities like Aleppo, have been destroyed.