Sweden’s NATO accession was approved by Hungary’s parliament Monday, clearing the last hurdle before the historic step by the Nordic country whose neutrality lasted through two world wars and the simmering conflict of the Cold War.

Hungary’s vote ended months of delays to complete Sweden’s security policy shift and followed a visit by Swedish Prime Minister Ulf Kristersson on Friday during which the two countries signed an arms deal.

Sweden’s NATO membership was supported by 188 lawmakers in Hungarian parliament, with 6 against and no abstentions.

Hungarian Prime Minister Viktor Orban’s government has faced pressure from NATO allies to fall in line and seal Sweden’s accession to the alliance.

“Finally it is done, Sweden is the 32nd member of the alliance, and this way NATO has become stronger,” Agnes Vadai, a lawmaker of the opposition party Democratic Coalition (DK) told parliament.

Stockholm abandoned its non-alignment policy for greater safety within the North Atlantic Treaty Organization in the wake of Russia’s invasion of Ukraine in 2022.

With Sweden following Finland into NATO, President Vladimir Putin has effectively achieved the very thing he sought to avert when he launched his war in Ukraine — an expansion of the alliance, Western leaders have said.

While Finland became a NATO member last year, Sweden was kept waiting as Turkey and Hungary, which both maintain better relations with Russia than other members of the U.S.-led alliance, raised objections.

Turkey withheld ratification on Sweden’s membership demanding tougher action against militants from the Kurdistan Workers’ party (PKK) it said had made a home in Sweden.

Sweden changed its laws and relaxed rules over arms sales to assuage Turkey. President Recep Tayyip Erdogan also linked ratification with U.S. approval of sales of F-16 fighter jets to Turkey, with Ankara now expecting the United States to work on securing the U.S. Congress’ endorsement.

Hungary’s foot-dragging was less clear in nature with Budapest mostly venting its annoyance over Swedish criticism of the direction of democratic development under nationalist premier Orban rather than any concrete demands.

Orban — who has refused to send weapons to neighbouring Ukraine and repeatedly criticised Western sanctions against Russia — on Monday again urged a ceasefire in Ukraine.

The accession of Sweden, which has not been at war since 1814, and Finland is the most significant expansion of the alliance since its move into Eastern Europe in the 1990s.

While Sweden has ramped up cooperation with the alliance in recent decades, contributing to operations in places such as Afghanistan, its membership is set to simplify defence planning and cooperation on NATO’s northern flank.

Sweden also brings resources such as cutting-edge submarines tailored to Baltic Sea conditions and a sizable fleet of domestically produced Gripen fighter jets into the alliance. It is hiking military spending and should reach NATO’s threshold of 2% of GDP this year.

The ratification will now be signed by the speaker of parliament and Hungary’s president within a few days, after which the remaining formalities, such as depositing accession documentation in Washington, are likely to be concluded swiftly.