New York: Stressing that complex issues facing the world cannot be resolved by any one country on its own, UN Secretary-General Ban Ki-Moon has asserted that a constructive partnership between the United States and the world body cannot be, and should not be, advanced at the expense of others.

Everyone of the members has a right to be heard irrespective of the size of its population and pocketbook, he added in his address to the Centre for Strategic and International Studies in Washington yesterday.

But simultaneously, he also emphasised the importance of an "active and constructive" relationship between the United States and United Nations.

Stating that partnership cannot flourish in a climate of fear and mistrust, Ban said with US actively and constructively engaged, the potential of the UN is unlimited.

"And with UN's potential fulfilled, the US can better advance the aspirations for a peaceful, healthy and prosperous world." Addressing the center after his first meeting as Secretary-General with American President George W Bush, Ban said complex global challenges is exactly the environment in which the UN should thrive because these are challenges that no country can resolve on its own.

But several developing countries would not like his comments on what is called 'Responsibility to Protect' which means humanitarian interventions in situations of genocide or ethnic cleansing where a country is unable or unwilling to protect its own citizens.