U.S. Secretary of State Antony Blinken receives the NATO ratification documents from Swedish Prime Minister Ulf Kristersson during a ceremony at the U.S. State Department, as Sweden formally joins the North Atlantic alliance, in Washington on March 7.ANDREW CABALLERO-REYNOLDS/Getty Images
Sweden joined NATO in Washington on Thursday, two years after Russia’s invasion of Ukraine forced it to rethink its national security policy and conclude that support for the alliance was the Scandinavian nation’s best guarantee of safety.
Swedish Prime Minister Ulf Kristersson handed over the final documentation to the U.S. government on Thursday, the last step in a drawn-out process to secure the backing of all members to join the military alliance.
“Good things come to those who wait,” U.S. Secretary of State Antony Blinken said as he received Sweden’s accession documents from Mr. Kristersson.
Mr. Blinken said “everything changed” after Russia’s full-scale invasion of Ukraine, citing polls showing a massive shift in Swedish public opinion on joining NATO.
“Swedes realized something very profound: that if Putin was willing to try to erase one neighbour from the map, then he might well not stop there.”
For NATO, the accessions of Sweden and Finland – which shares a 1,340-kilometre border with Russia – are the most significant additions in decades. It is also a blow for Russian President Vladimir Putin, who has sought prevent any further strengthening of the alliance.
Sweden will benefit from the alliance’s common-defence guarantee under which an attack on one member is regarded as an attack on all.
“Sweden is a safer country today than we were yesterday. We have allies. We have backing,” Mr. Kristersson said in an address to the Swedish nation from Washington. “We have taken out an insurance in the Western defence alliance.”
Hakan Yucel, 54, an IT worker in the Swedish capital, said of the accession: “Before, we were outside and felt a little bit alone. … I think that the threat from Russia, it’s going to be much less now.”
Sweden has formally joined NATO as the 32nd member of the transatlantic military alliance, ending decades of post-World War II neutrality.
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U.S. President Joe Biden, in a statement, said the addition of Sweden made NATO “more united, determined, and dynamic than ever,” adding that the accession of Sweden and Finland to the alliance meant the addition of “two highly capable militaries.”
Sweden adds cutting-edge submarines and a sizable fleet of domestically produced Gripen fighter jets to NATO forces, and is a crucial link between the Atlantic and Baltic.
“Sweden’s accession makes NATO stronger, Sweden safer and the whole Alliance more secure,” NATO Secretary General Jens Stoltenberg said in a statement.
Russia has threatened to take unspecified “political and military-technical counter-measures” in response to Sweden’s move.
“Joining NATO is really like buying insurance, at least as long as the United States is actually willing to be the insurance provider,” said Barbara Kunz, a researcher at defence think tank SIPRI.
While Stockholm has been drawing ever closer to NATO over the last two decades, membership marks a clear break with the past, when for more than 200 years, Sweden avoided military alliances and adopted a neutral stance in times of war.
After the Second World War, it built an international reputation as a champion of human rights, and since the Soviet Union collapsed in 1991, successive governments have pared back military spending.
As recently as 2021, its defence minister had rejected NATO membership, only for the then-Social Democrat government to apply, alongside neighbour Finland, just a few months later.
“I guess (Sweden) had to take a stance really and I’m happy that we actually did and that we are safeguarded by NATO, because the tension with Russia has been growing for a couple of years,” said Carl Fredrik Aspegren, 28, a student in Stockholm.
While Finland joined the alliance last year, Sweden was kept waiting as Turkey and Hungary, which both have cordial relations with Russia, delayed ratifying Sweden’s accession.
Turkey approved Sweden’s application in January.
Hungary delayed its decision on Sweden’s accession until Mr. Kristersson made a goodwill visit to Budapest on Feb. 23, where the two countries agreed a fighter jet deal.