U.S. Defense Secretary Jim Mattis says the U.S. cannot afford to ignore destabilizing moves by Iran, but has no plans to respond by increasing American military forces in the Middle East.
- U.S. announces new sanctions on Iran over ballistic missile test
- Trump: 'Nothing is off the table' for U.S. response to Iran's missile test
- Trump's bid to impose new sanctions on Iran after missile test gets bipartisan support
Mattis spoke at a joint news conference in Tokyo with his Japanese counterpart, Tomomi Inada.
Mattis was asked about the White House's statement this week that it was putting Iran "on notice."
Mattis held a series of high-level meetings in Seoul and Tokyo this week on his first overseas trip as Pentagon chief. He was returning to Washington Saturday.