Europe’s fossil fuel reliance could be weaponized in war, EU chiefs warn

By Zia Weise | 05/29/2026 06:07 AM EDT

The bloc’s dependence on foreign oil and gas is a defense liability, Wopke Hoekstra and Andrius Kubilius say.

EU Climate Commissioner Wopke Hoekstra delivers a speech.

“Now we’re talking about a situation where we are not at war, but we are already seriously constrained in our use of oil, gas, kerosene,” said Climate Commissioner Wopke Hoekstra said, referring to the energy crisis caused by the Iran war. John MacDougall/AFP via Getty Images

BRUSSELS — Enemies could exploit Europe’s fossil fuel dependence to “choke” the bloc in the event of a war, the European Union’s defense and climate chiefs warn.

The EU buys 95 percent of the oil and 85 percent of the natural gas its households, transport and industry consume from abroad. The European Commission and military officials are concerned this reliance on imports could become a security threat in times of conflict.

That makes the bloc’s shift to clean, homegrown energy sources not only essential to Europe’s efforts to slash planet-warming emissions, but also central to military planning, the EU’s climate and defense commissioners told POLITICO in a joint interview.

Advertisement

The warning comes as two wars outside the EU — in Ukraine and Iran — have limited oil and gas supplies and pushed up energy prices in Europe.

GET FULL ACCESS