The United States, Britain, and France may be complicit in war crimes in Yemen by arming and providing intelligence and logistics support to a Saudi-led coalition that starves civilians as a war tactic, the United Nations said on Tuesday. U.N. investigators recommended that all states impose a ban on arms transfers to the warring parties to prevent them from being used to commit serious violations. Saudi Arabia and the United Arab Emirates, the main parties in the coalition fighting against the Iran-aligned Houthi movement that controls Yemen’s capital, are two of the biggest buyers of U.S., British and French weapons. The experts compiled a secret list of suspected war criminals. Investigators found potential crimes on both sides, while highlighting the role Western countries play as backers of the Arab states and Iran plays in support of the Houthis.