As NATO considers Finland and Sweden's membership bids, US President Joe Biden claims, on Wednesday, that he will work with them to remain vigilant against any threats to their security.

“While their applications for NATO membership are being considered, the United States will work with Finland and Sweden to remain vigilant against any threats to our shared security, and to deter and confront aggression or the threat of aggression,” Biden said in a statement.

Biden also stated that he will work with the US Congress and NATO allies to bring Sweden and Finland into the military alliance as soon as possible.

Earlier on Wednesday, Finland and Sweden handed in their bids to join the US-led military alliance NATO.

"The applications you have made today are a historic step. Allies will now consider the next steps on your path to NATO," NATO chief Jens Stoltenberg said, after receiving the bids from the Finnish and Swedish ambassadors at the alliance's headquarters.

Finland voted in favor of entering the NATO alliance, which followed an earlier statement by Finland's President and the Ministerial Committee on the completion of a Foreign and Security Policy report regarding the country's NATO membership.

Finland and Sweden have been expected to apply to join NATO, which promised to grant them membership quickly, according to diplomats and officials.

Meanwhile, Russia constantly contended that it has no intention to aggress against the two countries.