According to two people familiar with the decision, the U.S. is banning Russian aircraft from its airspace in response to the invasion of Ukraine.

The European Union and Canada have taken similar actions this week. The people spoke on the condition of anonymity to discuss the speech.

In remarks released by the White House in advance of the speech, Biden offers an ominous warning that without consequences, Russian President Vladimir Putin's aggression wouldn't be contained to Ukraine.

When dictators do not pay a price for their aggression, they cause more chaos. The costs and threats to America and the world are increasing.

The United States, Europe and other nations have imposed sanctions on Russia that are expected to hurt that nation's economy.

On Sunday, the European Union and Canada announced they were closing their airspace to Russian airlines and private planes.

Aeroflot, Russia's largest airline, suspended flights to New York, Washington, Miami and Los Angeles through Wednesday because of the Canadian ban.

It is possible that Russia could ban U.S. flights over its territory, which would make flights longer and more expensive. FedEx andUPS both fly over Russia, despite the fact that they are suspending deliveries to that country.

There are a few flights to India that pass through Russian airspace. American Airlines routes its lone flight between Delhi and New York to avoid Russian airspace, which adds miles to the trip and means that the flight often requires a refueling stop in Bangor, Maine.

Russia is interested in preserving overflights by U.S. carriers. Aviation experts say Russia gets a lot of money from the fees it charges to use its airspace and airports.

European airlines fly over Russia more often than Americans do. About 600 flights to or from Europe passed through Russian airspace before the war.

Boeing is a major U.S. exporter and one of the world's two dominant aircraft manufacturers.

Russia and China are thought to be talking to each other. Ferguson said that the rise of tension between the West and Moscow makes it less likely that China will reauthorize flights by Boeing.

China was the biggest market for the Max before it was grounded, and neither China nor Russia has yet approved the plane's return. Ferguson said that a delay in approving the Max will reduce Boeing's expected aircraft deliveries, an important source of cash for the Chicago-based company.

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The report was contributed to by Associated Press writers in Moscow and Berlin.

We can be reached at letters@time.com.