'“Today, we’re also working for a transition so the Syrian people can have a better future, free of the Assad regime,” Obama in a speech to US veterans in the western state of Nevada on Monday.

Obama also noted that the United States has begun a new era of leadership in the world, pointing out that the US is leading the world from Europe to Asia-Pacific region and has several plans for the Middle East and North Africa.

“We’re leading on behalf of freedom -- standing with people in the Middle East and North Africa as they demand their rights,” the US president added.'

Read more: US Seeks Assad's Removal from Power: Obama