U.S.-Russian Strategic Arms Reduction Treaty of 1991 (START) is set to expire in December 2009 and the Obama administration intends to negotiate a START renewal treaty before then.

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Gunners from the Armed Forces of Ukraine fire at Russian position with a 155 mm self-propelled howitzer 2C22 in the Kharkiv region on April 21, 2024. (Anatolii Stepanov/AFP via Getty Images)