Translated from Ahmadinejad it means one world religion - Islam. That it is the subtle meaning of his speech....convert to Islam or else. Here is the key excerpt in it's entirety:

The only sustainable way to the betterment of mankind is the return to the teachings of the divine prophets, monotheism, respect for the dignity of humans and the flow of love and affection in all relationships, ties and regulations, and to reform the present structures on this basis.

To fulfill this objective, I invite everybody to form a front of fraternity, amity and sustainable peace based on monotheism and justice under the name of "Coalition for Peace", to prevent incursions and arrogance and to promote the culture of affection and justice.

I hereby announce that with the help of all independent, justice-seeking and peace-loving nations, the Islamic Republic of Iran will be heading down this path.

Monotheism, justice and compassion for humans should dominate all the pillars of the UN and this organization should be a forum for justice, and every member should enjoy equal spiritual and legal support.

That should make us all wince. He's telling the world to convert.