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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, March 17

Trump says he will talk to Putin on Tuesday as he pushes for an end to Ukraine war

G7 warns Russia of expanded sanctions unless it backs ceasefire

Pentagon is closely monitoring Russia and China test military capabilities in space

US launches attacks on militant targets in Yemen, gives warning to Iran as tensions boil over

G7 adopts tougher stance on Beijing, scraps 'one China' reference from Taiwan language

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