US military in Japan

The US military faced loud and noisy demonstrations, which luckily remained peaceful, when the F-22 (Raptor) was flown to a US base to counter the North Korean thread. The F-22 was not previously employed outside the US and this was the first time that the US send this new and most expensive of their air combat toys outside US borders. The F-22 also is a Stealth fighter which means that it is harder to detected in comparison to conventional fighters, this can either increase the time until fired upon or even prevent enemy fire and/or detection.
More recently a bomb has exploded near a US base in Japan which may be reason for concern since the Japanese population seems to want that the US troops begin their long promised leaving of the country.

Explosion in Japan near US base (Al Jazeera)