BRUSSELS (AP) President Joe Biden makes his entrance at a NATO summit aiming to consult European allies on efforts to counter provocative actions by China and Russia while highlighting the U.S. commitment to the 30-country alliance that was frequently maligned by predecessor Donald Trump .

The summit Monday comes as Biden tries to rally allies for greater coordination in checking China and Russia, two adversaries whose actions on economic and national security fronts have become the chief foreign policy concerns in the early going of the Biden presidency.

Biden will use his time at the summit to underscore the U.S. commitment to Article 5 of the alliance charter, which spells out that an attack on one member is an attack on all and is to be met with a collective response.

I will make it clear that the United States commitment to our NATO alliance and Article 5 is rock solid, Biden told U.S. troops in the United Kingdom last week on the first stop of his eight-day European trip. Its a sacred obligation.