President Donald Trump's ambassador against anti-Semitism also decried the spread of anti-Jewish sentiment around the world.
The Forest Service will first try to adopt the horses out before putting them up for sale.
Critics have been pressing for an overhaul of the practice, which has been branded "barbaric" by animal rights groups.
At one Chinese slaughterhouse, dogs were bludgeoned to death with a metal rod.
Cows are considered holy in India, and vigilante groups are murdering beef-eaters to protect bovines.
Eating and killing cattle is a source of political and religious tensions across India.
The simple assumption that "no ground troops" means no risk is not the case.
On April 6, a ritual sacrifice took place inside the walls of Jerusalem's Old City for the first time in 2,000 years.
The Gadhimai festival occurs every five years and has attracted widespread condemnation