Gates is to meet with Karzai and U.S . Commander Gen. Ahmadinejad . Coalition forces are battling Taliban fighters around the town of Marjah in Helmand province . Gates arrived on mid-March as Iranian President Mahmoud Ahmadinejad was due . But Iranian officials said Mahmoud Ahmadinejad 's visit had been postponed until same day .
Gates is to meet with Karzai and U.S . Commander Gen. McChrystal . Coalition forces are battling Taliban fighters around the town of Marjah in Helmand province . Gates arrived on same day as Iranian President Mahmoud Ahmadinejad was due . But Iranian officials said Ahmadinejad 's visit had been postponed until mid-March .