The governments of Sweden and Finland have formally submitted their applications to join NATO after thorough discussion within their respective parliaments. The move will prove to be the latest and arguably the most significant development from the West in response to Russia’s invasion of Ukraine.

“I warmly welcome the requests by Sweden and Finland to join NATO. You are our closest partners,” NATO Secretary-General Jens Stoltenberg said after receiving the application requests of the two countries.

Stoltenberg proclaimed the occasion a “historic step” and “a good day at a critical time for our safety” as he held the two white folders containing the country’s application letters.

President Biden also showed his administration’s support for the membership of the two Nordic countries in a statement.

“I warmly welcome and strongly support the historic applications from Sweden and Finland for membership in NATO and look forward to working with the US Congress and our NATO Allies to quickly bring Sweden and Finland into the strongest defensive alliance in history,” the statement wrote.

“Finland and Sweden are longtime, stalwart partners of the United States. By joining NATO, they will further strengthen our defense cooperation and benefit the entire Transatlantic Alliance,” he added.

“Together with our NATO Allies, the United States will maintain its robust exercise activity and presence in the Baltic Sea region. 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, stating that the US commitment to NATO and Article 5 is “ironclad.”