The U.S., accusing Russia of violating a Cold-War era arms treaty, has begun researching the development of a ground-based cruise missile banned under the pact to counter weapons that Washington believes Russia is fielding, according to U.S. officials.

The U.S. doesn't want to end the Cold War-era agreement, known as the Intermediate-Range Nuclear Forces Treaty, or the INF, but rather bring Russia back into compliance. By beginning development of a missile banned under the treaty, Washington is hoping to show Moscow the kinds of new American weapons Russia's armed forces will face if they don't stop violating the INF.

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