WATCH: Biden holds news conference at end of NATO Summit

BRUSSELS, Belgium -- President Joe Biden says NATO will stand firm against alleged Russian and Chinese efforts to drive a wedge between members of the alliance.

Biden spoke Monday at the end of a NATO summit in Brussels that focused in part on challenges from those two countries.

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Biden’s comments at a press conference focused partly on what he called “aggressive hacks” by Russia, and other “malicious cyberactivity.”

Biden is calling NATO “a strong foundation” for continued building of security for the 30 member countries.

The meeting ended with a communique expressing strong concern about China as an alleged security challenge and threat to world order.