CSTO Warns of Rising Border Tensions After Zelensky’s Ultimatum to Belarus

A senior official of the Collective Security Treaty Organization (CSTO) said Wednesday that the Moscow-led military alliance has noted rising tensions between Ukraine and Belarus after Kyiv last week threatened to strike military targets inside Belarusian territory. Viktor Vasilyev, Chairman of the CSTO Permanent Council, speaking at the St. Petersburg International Legal Forum, stated that “the situation on the border between Ukraine and Belarus is growing more tense.”

His comment follows an ultimatum from Ukrainian President Volodymyr Zelensky, who last week said his military would strike ground stations in Belarus if it continues to allow Russia to use them. The stations, he claimed, were used in recent Russian strikes on Ukraine. Zelensky warned that if Belarusian President Alexander Lukashenko did not remove the stations, Ukraine’s military would act. “I think a week will be enough for him to do it. If he doesn’t do it, we will,” Zelensky said in an interview on Ukrainian television.

Adding to tensions, Russian and Belarusian officials claim that a Ukrainian drone struck a bus carrying a Belarusian youth soccer team in a Russian border area last week, killing a woman and injuring six others, including four children. Ukraine denied targeting the bus and dismissed the allegations as a “provocation.” Lukashenko insisted the drone came from Ukraine but has otherwise avoided using the incident as a pretext for retaliatory actions toward Kyiv.

Meanwhile, Lukashenko said earlier this month that Belarus has no intention of joining Russia in its war against Ukraine. “We have said many times that it is absolutely unacceptable for the war between Ukraine and Russia to spill over into Belarusian territory,” he said, adding that Minsk is “very vulnerable militarily.” Former and current Russian and European officials told The Wall Street Journal this week that Moscow has allegedly begun a “pressure campaign” to draw Belarus into the war with Ukraine or “operations” against its NATO neighbors. Although Russia used Belarusian territory as a launchpad during its initial 2022 invasion, Minsk has so far avoided direct combat involvement, even as the two countries have deepened military and economic ties.