The United States has decided to limit military support to Saudi Arabia’s campaign in Yemen because of concerns over widespread civilian casualties and will halt a planned arms sale to the kingdom, U.S. officials told Reuters.

The United States will also revamp future training of the kingdom’s air force to focus on improving Saudi targeting practices, a persistent source of concern for Washington.

The decision reflects deep frustration within President Barack Obama’s government over Saudi Arabia’s practices in Yemen’s 20-month-old war, which has killed more than 10,000 people and sparked humanitarian crises, including chronic food shortages, in the poorest country in the Middle East. […]