A Russian senator warned this week that a proposed U.S. military base in Poland nicknamed "Fort Trump" would quickly become one of Russia's military targets if the plan moves ahead.

Poland has invited the U.S. to set up a military base near Russia's border. A few months ago, Polish President Andrzej Duda proposed it could be called "Fort Trump."

But this week, Frants Klintsevich, a member of Russia's upper house in its parliament, said the base would immediately be targeted by Russia.

"If a facility is really created on Polish territory, it will immediately become a target for a strike," the senator said, according to Tass, Russia's state-owned news service. "These are the rules of the war."

Klintsevich said the establishment of a "Fort Trump" would be an "irresponsible step" that would only boost tensions in the region. He also said Poland's proposal is "dangerous" and "economically unjustified," Tass said.

Trump said in September he's considering Duda's plan for an increased U.S. military presence in Poland.