BAGHDAD, Iraq — Citing Iranian involvement with Iraqi militias and Tehran's nuclear ambitions, the Bush administration has shifted to offense in its confrontation with Iran — building up the U.S. military in the Persian Gulf and promising more aggressive moves against Iranian operatives in Iraq and Lebanon.
The behind-the-scenes struggle between the two nations could explode into open warfare over a single misstep, analysts and U.S. military officials warn.
Iraq has become a proxy battleground between Washington and Tehran, which is challenging — at least rhetorically — America's dominance of the Gulf. That has worried even Iraq's U.S.-backed Shiite prime minister, who — in a reflection of Iraq's complexity — also has close ties to Iran.
Iran and the United States are already sparring on the ground.
On Jan. 20, militants kidnapped and killed four American soldiers in a raid in Karbala, and a fifth was killed in the firefight. A U.S. defense official said one possibility under study is that Iranian agents either executed or masterminded the attack, a suspicion based on the sophisticated and unusual methods used in the attack, including weapons and uniforms that may have been American.
He spoke on condition of anonymity because the probe is ongoing.
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