He said this at a press conference following talks with his Brazilian counterpart Carlos Alberto Franco França.
“Significant units and military equipment of NATO countries, including American and British, are being deployed closer to our borders.
In Ukraine itself, on the line of contact in Donbass, more and more forces and means are accumulating with the support of an increasing number of Western instructors, "RIA Novosti quotes Lavrov.
Earlier, Polish President Andrzej Duda proposed NATO Secretary General Jens Stoltenberg to increase the readiness of the alliance forces on the eastern flank.