The American economist Henry George wrote, “What protection teaches us, is to do to ourselves in time of peace what enemies seek to do to us in time of war.” In Russia, Vladimir Putin started a war and then, in response to mild American and European sanctions, retaliated by imposing greater sanctions—on his own people.

Even American journalists, whose economic acumen I have been known to question, have noted the likely effects of Putin’s sanctions. See Michael Birnbaum in the Washington Post:

Russia on Thursday banned most imports of Western food products, a sweeping escalation in an economic war that will deal a multibillion-dollar hit to affected nations but will also unreel wide-ranging consequences at home.

The measures were a signal that Russia is not backing down from a confrontation that has sent Western-Russian tensions to heights not seen since the Cold War—and that it is willing to risk barer shelves and higher food prices at home in the name of striking a blow against countries that have tried to punish it over its role in the Ukraine conflict.

Russia has suspended imports of meat, fish, fruit, vegetables and milk products from the United States, the 28-nation European Union, Norway, Canada and Australia for a year. The move came in retaliation for sanctions those countries imposed on Russia.…

In Russia, the food measures promised to hit not just city centers, where the urban middle class has grown accustomed to visiting supermarkets overflowing with high-quality imported European cheeses, fish and sausages. Analysts warned that food prices also would increase and that a wide range of Russian industries, including food processing plants, shippers and retailers, would be affected.…

“It will be quite sensitive,” said Yevsey Gurvich, the head of the Economic Expert Group. “Not only rich people will feel it, but literally every family will be affected.” He said he estimated that Russian consumer prices would go up 2 percent this year because of the measures.

“Alternatives to imported foods will be more costly, and, anyway, I believe they will be insufficient, and our supplies will diminish. And, hence, prices will go up,” he said.

Americans who wished for more painful sanctions on Russia than President Obama has imposed are getting their wish—thanks to Putin.