Iran can counter this shameful act by stopping Japanese imports as much as it can and replace it with local manufacturing. Also Iran should set courts and award hefty penalties in trillions of dollars to victims of Iran Iraq war, operation Ajax and Anglo Iranian oil company. Japan was one of the main donor countries to Saddam during 1980's and solid documents exist for that. Iranian courts can easily claim damages worth hundreds of billion dollars from Japan. Also Iran can set up manufacturing units copying Japanese products without paying any royalty or give any damn to their property intellectual rights. There are many ways to counter it. Also let's not forget that Iran can also give North Korea advanced missiles and satellite launchers. Let's see Japanese faces then.