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Monday, April 21, 2025. 8:30 AM EST

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.

CIPHER BRIEF EXCLUSIVES THE AMERICAS THE UKRAINE UPDATE EUROPE THE MIDDLE EAST ASIA & OCEANIA AFRICA CYBER, TECH & MARKETS REPORT INFO

Open Source Report for Monday, April 21, 2025

Report for Monday, April 21, 2025

Hegseth accused of sharing military details in second Signal chat with wife, brother, lawyer

Trump Administration Draft Order Calls for Drastic Overhaul of State Department

Kyiv Is On the Clock to Respond to Trump Plan to End Ukraine Conflict

Iran, US task experts to design framework for a nuclear deal, Tehran says

China's U.S. envoy urges end to trade war, but warns Beijing ready to fight

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