Defense Minister Itsunori Onodera on Aug. 10 expressed the view that Japan could intercept a missile from North Korea heading for Guam as an act of collective self-defense if such an attack posed a crisis threatening Japan's existence.
"It cannot be ruled out that a deficiency in U.S. deterrence and striking power could constitute a crisis threatening Japan's existence," Onodera said during a meeting of the House of Representatives Committee on Security.
Onodera's statement came in response to a question from Yuichi Goto of the opposition Democratic Party.
In a news conference the same day, Chief Cabinet Secretary Yoshihide Suga criticized North Korea over its statement that it was considering striking Guam. "This is clearly a provocative act, and cannot be permitted. We strongly request that it refrain from further provocative actions," Suga said.
Suga indicated that Japan and the U.S. would discuss a response in their "two plus two" meeting of foreign and defense chiefs slated to go ahead on Aug. 17.