Finland is to be accepted into NATO with a festive ceremony this Tuesday. After an accession process of less than a year, the Nordic country with 5.5 million inhabitants will become the 31st member of the world’s largest defense alliance. Russian President Vladimir Putin may have hoped for different developments when he ordered the invasion of Ukraine on February 24, 2022. Questions and answers on a historic day.

For the other alliance states, Finland’s accession initially means an extended obligation to provide assistance. Should Finland, which borders Russia, be attacked by its neighbor, it would be seen as an attack on all NATO countries – and every ally would be called upon to lend their support. Finland’s membership will extend the direct border between NATO and Russia by around 1,340 kilometers, more than doubling it.

At the same time, the alliance founded in 1949 will become larger and more powerful with the accession of Finland. According to NATO Secretary General Jens Stoltenberg, the northernmost EU country has well-equipped and trained armed forces and is currently investing in more than 60 state-of-the-art F-35 fighter jets. Because of Finland’s geographical location, the Baltic NATO states of Estonia, Lithuania and Estonia, for example, could be defended much better in the event of a Russian attack.

According to figures from the International Institute for Strategic Studies (IISS), Finland is already one of the countries that invest two percent of their gross domestic product in defense every year. This important NATO guideline is currently not being achieved by Germany and a number of other alliance partners. The size of the Finnish armed forces is given by the IISS as 19,000 men and women, plus around 238,000 reservists. To protect the land borders, Finland has, among other things, about 100 Leopard 2A6 main battle tanks and hundreds of artillery pieces.

From Stoltenberg’s point of view, the admission of Finland is a clear sign of the failure of the policy of Russian President Vladimir Putin. Putin declared on Monday that he went to war against Ukraine with the declared goal of having a smaller NATO presence in Europe and preventing further expansion of the alliance. With Finland’s accession, NATO’s border with Russia will now more than double. Putin is getting exactly the opposite of what he wanted.

At the same time, NATO emphasizes that there is no reason for Russia to feel threatened by northern expansion. The alliance also contradicts representations that the alliance really wants to encircle Russia. According to NATO information, only 1,215 kilometers of the more than 20,000 kilometers long Russian land border are currently bordering on NATO countries. Even if another 1340 kilometers are added, the common border is comparatively small.

Kremlin chief Putin has repeatedly made it clear that he has a major problem with NATO expansion towards Russia. Moscow has reacted accordingly to the accession process in recent months. The Russian Foreign Ministry criticized that a neighbor joining NATO would severely damage Russian-Finnish relations. “Russia will be forced to respond appropriately – in military-technical and other terms – to take into account the threats to its national security,” the ministry said in a May statement.

In NATO, such a step is considered extremely unlikely. On the one hand, the Russian armed forces are tied down by the war against Ukraine and in some cases are severely weakened. On the other hand, Putin would then also mess with the 30 other NATO countries. However, NATO considers it quite conceivable that Russia might, for example, launch cyber attacks against targets in Finland or try to alarm the Finnish population with increased air force activities. In addition, Dmitry Medvedev, Deputy Head of the National Security Council and ex-President, has threatened to station nuclear weapons in the Russian Baltic Sea region.

For many decades, Finland has managed a difficult balancing act between East and West: In view of its extremely long border with Russia, the country tried to be on good terms with the giant empire in the east. At the same time, however, it built closer and closer ties to the West. Finland joined the EU in 1995 and was the only Nordic country to later introduce the euro. So far, the Finns have worked together as a close partner with NATO – without severing the relatively good contacts with Moscow.

Russia’s war of aggression against Ukraine put an abrupt end to this East-West balance. After many years of military non-alignment, Finland applied for NATO membership together with Sweden in May 2022, and the Finns have now been accepted in record time. This step is almost as important as EU membership, said political advisor Risto E.J. Penttilä to Finnish Radio. “EU membership meant Finland was part of Europe and the West, but at the same time we were outside of NATO,” he said. “Now we are integrated in Europe, but through this NATO membership we also have a strong connection to the USA.”

According to the Finnish Presidential Office, Foreign Minister Pekka Haavisto will hand over the accession certificate. A solemn ceremony is then planned at 3:35 p.m. in front of the NATO headquarters in Brussels, at which the Finnish flag will also be hoisted there for the first time. In addition to Finnish President Sauli Niinistö, Federal Foreign Minister Annalena Baerbock and her 29 colleagues from the other current member states are expected to attend the celebration.

Actually, the Swedes wanted to get into NATO at the same time as their Finnish neighbors – but nothing will come of it. The reason for this is that Turkey still does not want to agree to Sweden joining NATO and Hungary has still not ratified it either. Ankara complains that Turkey sees insufficient action against “terrorist organizations” and wants to force concessions. Budapest takes issue with Swedish statements on the rule of law in Hungary, among other things. It is still unclear when the two countries will also open the NATO door for Sweden.

Stoltenberg said on Monday about the blockade that he was absolutely confident that Sweden would also become a member. The country will not be left alone and can already count on NATO reacting to threats or attacks against the country.