Jeenah Moon for The New York Times

The staff of The Times received the award for international reporting in recognition of their reporting on how President Putin of Russia has used shadow warfare to undermine the West and restore Russia as a global power.

Among the stories in the series:

• Michael Schwirtz uncovered the existence of a secret team of Russian military assassins throughout Europe called United 29155 that was responsible for the poisoning of a former Russian spy in Britain in 2018.

• The visual investigations unit analyzed and translated tens of thousands of cockpit recordings chronicling bombings in Syria by Russian aircraft, showing that Russia had targeted four Syrian hospitals over 12 hours.

• Dionne Searcey reported from the Central African Republic that Russia had sent mercenaries there to train local soldiers. The Russian operatives were partnering with rebels to mine diamonds.

• In Libya, David Kirkpatrick reported that Russia was assisting the country’s leader in the civil war by sending fighter jets and snipers.

The first story of the series was published on March 31.