This is the best summary I could come up with:

Russian pro-democracy activists in the Balkan country now say at least a dozen recently faced entry bans or had their residency permits revoked on grounds that they pose a threat to Serbia’s security.

“It was very sudden, very shocking,” Koposova said of the moment she received the expulsion order, which did not explain the reason for the measure, only declaring that she poses “a threat to national security” and that she must leave the country within 30 days.

She and her husband have built a modern house on a piece of land in a remote village outside Belgrade where they live with two children, ages 6 and 14, who are attending local school and preschool classes.

Vučić has refused to join Western sanctions against the traditional Slavic ally while allowing Moscow propaganda outlets such as RT and Sputnik to spread their narrative throughout the Balkans.

Since the war in Ukraine started two years ago, many Russians came to Serbia because they don’t need visas to enter the friendly Balkan state, a potential stepping stone for possible future emigration to the West.

Peter Nikitin, one of the founders of the pro-democracy Russian Democratic Society, himself spent two days at Belgrade airport last summer when his entry permit was revoked, although he has a Serbian wife and has lived in Serbia for seven years.

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