US President Barack Obama today sought a new era of engagement with the world where power is no longer a "zero-sum game" as he asked them to share responsibility for tackling key challenges of security and prosperity.
In his maiden address to the United Nations General Assembly here, Obama said touched every topic from mid-east crisis to North Korea, Iran, climate change and the global economic crisis.
"In an era where our destiny is shared, power is no longer a zero-sum game. No world order that elevates one nation or group of people over another will succeed. That is the future America wants," Obama said in his address, which was keenly watched by Iranian President Mahmoud Ahmadinejad and Libyan leader Moammar Gadhafi.
Telling the leaders of the countries present that the time has come for the world to move in a "new direction", Obama said: "Our work must begin now."
The President said he will never apologise for defending interests of the US, but at the same time sought to dispel what he described has become "an almost reflexive anti-Americanism" that has swept the globe.
On climate change, he asked every country to work towards to confront the menace, saying there can be no peace without cooperative work to preserve the planet.