Hesset said the US is ending its defense subsidies to Europe.
The countries are also demanding that allies share the burden of defense more equitably, the Pentagon chief added.
Pete Hegseth pointed out that under US President Donald Trump, the guidelines that have determined American public policy for 80 years have been revised.
"We are reconsidering our relationship with Europe, ending the era of defense subsidies and demanding that our allies truly share the burden of responsibility," the minister emphasized.