Russia is attacking Ukraine, but Belarus, a neighbouring country, is “the other aggressor in this war”, European Union President Ursula von der Leyen said on February 27.

One politician, Alexander Lukashenko, has ruled Belarus with a draconian hand for the last 28 years, with no interruption in power. And now, Lukashenko is supporting Russia in the war, reciprocating Russian President Vladimir Putin’s recent help in maintaining his own political power.

Putin is using Belarus as a staging ground for his war, which has resulted in at least 500 Ukrainian civilian deaths and caused more than 10 lakh people to flee the country. Russian troops have crossed into Ukraine through the Belarusian border in the north.

As an expert on Eastern Europe, I believe there are three key points to understand about Belarus’ involvement in the Ukraine war.

Russian interference

Belarus is a former Soviet republic of 94 lakh people that borders both Russia and Ukraine as well as Lithuania, Latvia and Poland. It is also Europe’s last dictatorship.

Lukashenko has spent nearly three decades balancing his ties to both Western powers and Putin. But the last presidential election marked a turning point that pushed Lukashenko closer toward Putin.

Lukashenko claimed victory after the August 9, 2020, election, which international experts widely consider fraudulent. Lukashenko received 80% of the popular vote, an impossibly favourable result given public discontent with his regime.

An unprecedented public uprising followed, as hundreds of thousands of Belarusians protested the election results.

Putin offered financial and military support to help Lukashenko silence the protests – without any international response or pushback. Putin also warned foreign powers not to interfere in Belarus’ affairs. This promise boosted Lukashenko’s confidence and feelings of impunity.

Belarusian police subsequently attacked protesters with water cannons, tear gas and stun grenades.

Since 2020, Belarus has faced a series of international economic sanctions that further alienated Lukashenko from the West. The European Union and the US announced on March 2, a new set of sanctions that restricts technology and potential war material exports to Belarus.

The lack of international reaction to Putin enabling Lukashenko’s behaviour – alongside the economic pressure – pushed the Belarusian leader even closer to the Kremlin. This leaves Lukashenko with a limited ability to have an independent, or neutral, position on the war.

Lukashenko’s tight grip

The human rights situation in Belarus has sharply deteriorated since the 2020 elections, prompting an estimated 1,00,000 to 2,00,000 people to leave Belarus for neighbouring European Union countries and Ukraine.

People increasingly cannot freely express their opinions about any of the government’s decisions, for fear of persecution and arrest.

Since 2020, Belarus has detained more than 1,000 political prisoners, the US State Department reported in January.

And at least 497 journalists and media workers were detained by the government during the first eight months of 2021, according to United Nations human rights expert Michelle Bachelet. An estimated 129 Belarusian nonprofit and human rights organisations also closed down during this time frame.

Despite threats of government fines and arrests, thousands of Belarusians again took to the streets on February 27, to protest the referendum and to express solidarity with Ukraine. As a result, police arrested an estimated 800 protesters.

The silencing of public opinion gives Putin more power to exploit Belarusian territory for his political and military interests. Belarusians cannot apply pressure to the government and stop Lukashenko from following Putin’s orders.

Strategic stage

The border between Belarus and Ukraine stretches about 1,084 km – roughly half the length of Ukraine’s border with Russia. This significantly expanded Russia’s base for attacking Ukraine.

Belarus and Russia conducted large-scale, joint military exercises ahead of the February 24 invasion of Ukraine. Despite public assurances from the Belarusian government that the Russian troops would go back to Russia, some 30,000 Russian troops extended their stay in Belarus, and many eventually crossed into Ukraine.

Lukashenko continues to follow Putin’s orders as the war escalates.

Putin put Russia’s nuclear forces on high alert on February 27, raising international concern. That same day, Belarus scrapped its commitment to remaining nuclear-free following a public referendum vote that was rigged, international experts say. This change in Belarus’ constitution would allow Belarus to physically host Russian nuclear weapons.

Belarus’ military ties to Russia have strengthened since 2020.

Lukashenko announced in September 2021 that Russia would send military equipment, including helicopters and air defence systems, to the Belarusian-Ukraine border.

Two months later, Lukashenko broke his neutrality on Crimea, a Ukrainian peninsula that Russia forcibly annexed in 2014. The Belarusian leader publicly recognised that Crimea was Russian territory. Lukashenko also offered to host Russian nuclear weapons if the North Atlantic Treaty Organization moves nuclear weapons from Germany to Eastern Europe, as had been reported.

Lukashenko repeated his plan to station Russian warheads on Belarusian soil on February 27, speaking at a polling station on the day of the referendum.

Russia’s ability to place nuclear weapons in Belarus has raised alarm for neighbouring NATO countries, chiefly Poland, Latvia and Lithuania, as well as the US and other Western powers.

By hosting Russian troops and weapons, Lukashenko has shown that he is closely aligned with Putin – despite the popular will of the Belarusian people to maintain distance.

Tatsiana Kulakevich is Assistant Professor of instruction at the School of Interdisciplinary Global Studies and Affiliate Professor at the Institute on Russia at the University of South Florida.

This article first appeared on The Conversation.