The U.S. government, in its ongoing efforts to battle narcotics, has recently categorized illegal drugs as weapons of mass destruction. This unprecedented move is a part of America's bid to intensify its war against illicit substances. The potential implications of this decision on both national and international arenas are yet to be entirely understood but it will certainly transform the way narcotics are dealt with legally.

This news has potentially significant repercussions in Japan, where drug crimes are severely punished. The Japanese society is likely to welcome measures that portray narcotics use in a grim light, as the country traditionally has zero tolerance towards illegal drugs. However, the reclassification might also raise concerns about increased U.S. military involvement in anti-drug efforts.

In the U.S., the war on drugs has long been a contentious issue, eliciting a variety of responses from harsher sentencing laws to efforts towards decriminalization. The reaction in the EU is likely to be varied as well, given its diverse member states and differing approaches to drug control and law enforcement.