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The Cipher Brief curates open source information from around the world that impacts national security. Here’s a look at today’s headlines, broken down by region of the world.

Open Source Report for Monday, May 19, 2025

Report for Monday, May 19, 2025

Trump to speak on Monday with Putin and Zelensky about stopping Russia’s war in Ukraine

Russia Unleashes One of Its Largest Drone Barrages of the Ukraine War

Britain and E.U. Strike Landmark Brexit Reset Deal

Israel expands ground operations to control Gaza as aid trucks prepare to enter

China launches satellites to start building the world’s first supercomputer in orbit

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