Tokyo police are getting ready to welcome U.S. President Barack Obama to Japan, by conducting emergency drills.

Police rehearsed a possible knife attack with workers at a subway station in Tokyo.

When the attacker appeared, staff responded with backup from police.

President Obama will be visiting Japan as a state guest on the 24th and 25th of this month.

A summit with Japan’s Prime Minister Shinzo Abe is planned for the first day of his visit.