Lawmakers in the House approved legislation expressing their support for NATO.
The bill, approved Tuesday, enjoyed strong bipartisan support, passing by a 357 to 22 margin.
Analysts also say the vote sends a powerful message to President Donald Trump. The president has long been critical of NATO, accusing fellow member countries of not paying their fair share.
Supporters of the House Bill say the legislation pressures NATO allies to increase their defense budgets as they have pledged to do.