Russia strikes aircraft facility in Lviv, shattering city's relative peace

• Sadovy said the repair plant was not operating at the time of the attack and no casualties were reported. A large plume of smoke could be seen rising from the city’s west after the attack.

The big picture: Since the start of Russia's unprovoked invasion of Ukraine, the western portion of the country has seen comparatively little of the conflict so far, though Russia started striking more targets in the region over the last week.

• On Sunday, Russian missiles struck a military training facility near the Ukraine-Poland border, killing at least 35 people and prompting warnings from NATO countries.
• U.S. national security adviser Jake Sullivan said Sunday that the defensive alliance would respond to any attack on NATO territory — even an accidental strike.

A senior U.S. defense official during a background briefing Thursday said there have been more than 1,000 observed missile launches by Russian against Ukraine so far.

• The official said that Russian forces appear to be increasingly relying on non-precision-guided munitions more than at the start of the invasion, which suggests that "they might be either conserving their precision-guided munitions or beginning to experience shortages."

Go deeper: Leaders call for probe into heavy civilian casualties in Ukraine