Iraqi leaders implored Secretary of State Mike Pompeo to maintain a U.S. troop presence in the country, seeking U.S. reassurances after the Trump administration announced plans to withdraw troops from elsewhere in the region.

Mr. Pompeo’s visit to Iraq on Wednesday underscored the challenge U.S. officials face in persuading regional partners that the administration will remain involved in the turbulent region after President Trump’s decision in December to withdraw troops from Syria and to reduce troop levels in Afghanistan.

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