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A US Air Force soldier (L) talks to South Korean Army soldiers participate in annual joint exercises south of Seoul, on March 14, 2013.
A US Air Force soldier (L) talks to South Korean Army soldiers participate in annual joint exercises south of Seoul, on March 14, 2013.

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    U.S. lowers bar for North Korea attack

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U.S. lowers bar for North Korea attack

A new agreement formalizes a joint U.S.-South Korean response to even small-scale attacks from North Korea.

U.S. lowers bar for North Korea attack

A new agreement formalizes a joint U.S.-South Korean response to even small-scale attacks from North Korea.