Most people believe Israel and Iran have a substantially negative impact on the world, according to a BBC poll of 28,000 people in 27 countries. Canada and Japan rated highest among nations that were seen to have a largely positive influence.
In general, opinion seems to divide along the traditional fault lines of international politics.
Israel is viewed most negatively in the Muslim countries of the Middle East, although also in Europe.
Iran is viewed most positively in the Muslim world.
Polling results ... suggested [that more than half of] people think the U.S. has a mainly negative influence in the world.