U.S. Secretary of State Anthony Blinken said that crossing the Ukrainian border by even one Russian military would mean an attack on Ukraine.

He said this in an interview with the German TV channel ZDF, writes "European Truth."

"If a Russian soldier crosses the border into Ukraine, we will be dealing with a really deep problem. Because it would be a clear attack on Ukraine. Whether it's one soldier or a thousand. There is a real risk and it is a high risk. Not only in Ukraine, but lately Russia has also sent troops to Belarus. So it's a real risk," Blinken said.

As the Secretary of State noted, the U.S. and NATO have been trying for years to establish a transparent and positive relationship with Russia.

"Unfortunately, those attempts have been repeatedly rejected by Russia. In fact, the problem in recent years has not been NATO," Blinken added.

He said he does not expect a breakthrough from talks with Russian Foreign Minister Sergei Lavrov in Geneva on Friday, while hoping to hear what Moscow decided after consultations with the United States and NATO last week.

As a reminder, Blinken warned during his visit to Kiev on Jan. 19 that Russian President Vladimir Putin might order an attack as soon as possible.