The United States approved a $2.1 billion sale of 500 Patriot interceptors to Ukraine, financed by Europe, as President Volodymyr Zelenskyy urged faster delivery.

François Heisbourg, Scott Lucas, Alan Sked, Iikka Korhonen, Anne Applebaum and 7 more

Helsingin Sanomat, Die Zeit, Der Spiegel and 3 more

Binance suffered a $6.3 billion cryptocurrency heist, prompting rival exchanges to tighten security and restrict the movement of funds across their platforms.

Olivier J. Blanchard, David R. Miller, Paul Langley, Fabián Muniesa, Garrick Hileman and 12 more

Polish President Karol Nawrocki entered Warsaw’s Constitutional Tribunal overnight Friday amid clashes and a deepening dispute over the suspension of its president and deputy.

Matthew Søberg Shugart, Tim Bale, Matthew Goodwin, Kim L. Scheppele, Anders Aslund and 28 more

Countries at the U.N. biodiversity summit in Armenia adopted measures to accelerate the global nature pact’s implementation but left key financing questions unresolved.

Matthias C. Rillig, David B. Roy, Elisa Morgera, UN Environment