As Daniel Henninger of the Wall Street Journal watches the Obama administration’s response to the escalating conflict between Russia and Ukraine, he realizes he’s seen this movie before.

As of this week, it’s official. Vladimir Putin has turned Barack Obama totally into Jimmy Carter.

We may quibble over the timeline. Some might say it began when Mr. Obama whispered to then-Russian president Dmitry Medvedev he’d have “more flexibility” after the 2012 election; others that it set in when the U.S. president took Mr. Putin’s offer to let Bashar Assad escape the bombing of his airfields for using WMD against his own people.

“Carterization” has a specific meaning in American politics. In 1980, Ronald Reagan delivered an August speech to the Veterans of Foreign Wars convention in Chicago, just as he was starting his campaign to unseat Jimmy Carter, trapped then in the Iranian hostage crisis.

“The response from the administration in Washington” to foreign threats, said Reagan, “has been one of weakness, inconsistency, vacillation and bluff.”

“Our allies are losing confidence in us, and our adversaries no longer respect us,” he said. Our partners “are confused by the lack of a coherent, principled policy from the Carter administration.”

The characterization stuck, helped by Mr. Carter’s foreign adventures after his presidency. And in truth, Mr. Carter’s team included sterner ballast in Defense Secretary Harold Brown and National Security Adviser Zbigniew Brzezinski. Nothing similar exists today in the Obama administration.

The consequences of Mr. Obama’s Carterization overseas are coming so fast it’s hard to keep track. Ukraine, though important, is the tip of the iceberg.