US must lead globally but show restraint: Obama

WEST POINT: President Barack Obama says the United States must lead on the world stage, but also show restraint before rushing into military operations overseas.

Obama is outlining his foreign policy vision for his final two years during a commencement address at the US Military Academy.

Obama says the US is emerging from a long period of war. But he says isolationism isn´t an option in the 21st century.

He says the US will use force when necessary, but is stronger when it doesn´t act alone.

Obama also says he plans to work with Congress to increase support for the Syrian opposition.

The speech comes a day after Obama offered a blueprint for ending the US military engagement in Afghanistan.