Europe is facing a challenge from Russia to its very existence. Neither the European leaders nor their citizens are fully aware of this challenge or know how best to deal with it. I attribute this mainly to the fact that the European Union in general and the eurozone in particular lost their way after the financial crisis of 2008.

The fiscal rules that currently prevail in Europe have aroused a lot of popular resentment. Anti-Europe parties captured nearly 30 percent of the seats in the latest elections for the European Parliament but they had no realistic alternative to the EU to point to until recently. Now Russia is presenting an alternative that poses a fundamental challenge to the values and principles on which the European Union was originally founded. It is based on the use of force that manifests itself in repression at home and aggression abroad, as opposed to the rule of law. What is shocking is that Vladimir Putin’s Russia has proved to be in some ways superior to the European Union—more flexible and constantly springing surprises. That has given it a tactical advantage, at least in the near term.

Europe and the United States—each for its own reasons—are determined to avoid any direct military confrontation with Russia. Russia is taking advantage of their reluctance. Violating its treaty obligations, Russia has annexed Crimea and established separatist enclaves in eastern Ukraine. In August, when the recently installed government in Kiev threatened to win the low-level war in eastern Ukraine against separatist forces backed by Russia, President Putin invaded Ukraine with regular armed forces in violation of the Russian law that exempts conscripts from foreign service without their consent.

In seventy-two hours these forces destroyed several hundred of Ukraine’s armored vehicles, a substantial portion of its fighting force. According to General Wesley Clark, former NATO Supreme Allied Commander for Europe, the Russians used multiple launch rocket systems armed with cluster munitions and thermobaric warheads (an even more inhumane weapon that ought to be outlawed) with devastating effect.* The local militia from the Ukrainian city of Dnepropetrovsk suffered the brunt of the losses because they were communicating by cell phones and could thus easily be located and targeted by the Russians. President Putin has, so far, abided by a cease-fire agreement he concluded with Ukrainian President Petro Poroshenko on September 5, but Putin retains the choice to continue the cease-fire as long as he finds it advantageous or to resume a full-scale assault.

In September, President Poroshenko visited Washington where he received an enthusiastic welcome from a joint session of Congress. He asked for “both lethal and nonlethal” defensive weapons in his speech. However, President Obama refused his request for Javelin hand-held missiles that could be used against advancing tanks. Poroshenko was given radar, but what use is it without missiles? European countries are equally reluctant to…