In his last UN address, Obama warned "proxy wars" by some nations endanger their communities and risk export of extremism overseas
Warning against the rise of extremism, US President Barack Obama said the nations engaged in "proxy wars" and regional conflicts must end them and allow communities to co-exist.
"Across-the-regions conflicts, we have to insist that all parties recognise a common humanity and the nations end proxy wars that fuel disorders," he said.
He said until basic questions are answered about how communities co-exist, the "embers of extremism to burn" causing sufferings to countless human beings.
Obama cautioned that such wars fuel disorder and risk export of extremism overseas.
The US President made his eighth and final address to the UN General Assembly on Tuesday, urging the international community to reject terrorism and embrace tolerance.
"No external power is going to be able to force different religious communities or ethnic communities to co-exist for long," Obama told the world leaders gathered for the 71st UN General Assembly session.
He admitted that the extremist and sectarian violence destabilising the Middle East and spreading elsewhere "will not be quickly reversed."
"Our international community must seek to work with those who seek to build, rather than destroy," he said.
He added, "In a place like Syria, where there's no military victory to be had, we're going to have to pursue the hard work of diplomacy."
"The world is too small, we are all too packed together to be following the old ways of thinking. We must reject the fundamentalism...instead we need to embrace the tolerance that results from respect for all human beings," Obama said.
Obama's remarks come a day after the US secretary of state John Kerry asked Pakistan Prime Minister Nawaz Sharif to prevent terrorists from using his country's territory as safe havens.
India has accused Pakistan of waging a proxy war by supporting, arming and training militant groups like Jaish-e- Mohammad, Lashkar-e-Taiba who launch cross border attacks in South Asia.
Sunday's attack on the Indian army in Kashmir's Uri by heavily armed Pakistan-based Jaish-e-Mohammad militants was one of the deadliest attacks on the Indian Army in recent years.
The attack that killed 18 Indian Army soldiers has sparked a war of words between the two South Asian neighbours and triggered calls for Pakistan's diplomatic isolation.
(WION with inputs from agencies)