Russian missiles (reportedly) striking Poland will test NATO’s reliability:

Reports are coming out stating that two Russian missiles strayed into Poland, killing two people. This happened amidst a major attack in which Russia launched hundred missiles towards Ukraine. One of the targets was the city of Lviv, which is right near the Polish border, and two missiles strayed into Poland, as we read in reports.

If it is true that Russian missiles really did land on Poland, it was not done as an act of war by Russia. That which got hit was a grain drying house. If the Russians really wanted to attack Poland, they would have picked a serious target, such as city infrastructure. As Jacek Pawlicki, writing for Newsweek, wrote:

If the Russians had decided to attack Poland and NATO, they would not have started by shelling the grain dryer in Przewodowo. So let’s not panic. Let us demand a clear declaration from NATO allies on security guarantees.

rig. Gen. Patrick Ryder said that the Pentagon could not confirm if the reports of Russian missiles hitting Poland are true:

“We are aware of the press reports alleging that two Russian missiles have struck a location inside Poland near the Ukraine border. I can tell you that we don’t have any information at this time to corroborate those reports and are looking into this further”

However, US intelligence is saying that Russian missiles crossed into Poland, as we read in Bloomberg:

A senior U.S. intelligence official says Russian missiles crossed into NATO member Poland, killing two people.
Polish government spokesman Piotr Mueller did not immediately confirm the information, but said top leaders were holding an emergency meeting due to a “crisis situation.”

Polish media reported that two people died Tuesday afternoon after a projectile struck an area where grain was drying in Przewodów, a Polish village near the border with Ukraine.

The Polish government held an emergency meeting according to the New York Times:

Poland’s prime minister, Mateusz Morawiecki, and president, Andrzej Duda, convened a meeting of the National Security Council in response to a “crisis situation,” a government spokesman, Piotr Mueller, told reporters.

The US has stated that NATO will respond even if Russia accidentally strikes a NATO member. According to the Wall Street Journal:

U.S. national security adviser Jake Sullivan warned of a full-fledged NATO response if a Russian strike were to hit member-state Poland, after an attack on a Ukrainian military base roughly 10 miles from the border.

…

He also reiterated President Biden’s vow that the U.S. and its allies will “defend every inch” of the NATO territory and would respond even in the event of an accidental or unintentional strike by Russia.

“All I will say is that if Russia attacks, fires upon, takes a shot at NATO territory, the NATO alliance would respond to that,” Mr. Sullivan said.