Tokyo

"Tokyo" is the largest city and capitol of Japan.

At UNITY Headquarters within Mr. Jones' office there is three clocks showing different times for different cities. London, Tokyo and New York.

When the UNITY Intercept Team discovered that Cate Archer had been seriously injured by Isako, their instructions was to rescue Agent Archer and get her safely to Tokyo. (Cooperative Mission 1- The Rescue, No One Lives Forever 2: A Spy in H.A.R.M.'s Way)

External link
Tokyo on Wikipedia