TALLINN, Jan. 11 (AP) — Ukrainian President Volodymyr Zelenskyy was in the capital of Estonia on Thursday for meetings with the country’s leaders on the second day of trip through the small Baltic states, where concern is high about aggression from neighboring Russia.

Zelenskyy arrived in Tallinn late Wednesday after beginning his Baltic swing in Lithuania. He is to meet with Estonia’s president and prime minister and address the parliament before heading to Latvia.

In Lithuania’s capital, Vlnius, on Wednesday, Zelenskyy said Ukraine has shown the world that Russia’s military can be stopped.

He said Ukraine still must bolster its air defenses against Russia’s intensified missile and drone onslaughts and replenish its ammunition supplies as long-range strikes become the main feature of this winter’s fighting.