WASHINGTON - Taking on two of his toughest foreign policy challenges, President Barack Obama pledged to find a new course in Afghanistan and to help Israel achieve a broad peace with the Arab world.
On his second full day in office, Obama on Thursday also sought to reverse one of the most contentious policies of the Bush administration by signing an executive order to close the Guantanamo Bay prison for terrorist suspects while leaving undecided how to dispose of unresolved war crimes cases there.
The new commander in chief visited the State Department to underscore a major theme of his young administration: that diplomacy will play a more central role in American foreign policy — not just in seeking peace in the Middle East but also in defending the United States against global terrorist threats.
He struck a tone designed to contrast with that of his predecessor, saying a new approach is overdue.
"The inheritance of our young century demands a new era of American leadership," Obama said. "We must recognize that America's strength comes not just from the might of our arms or the scale of our wealth, but from our enduring values. And for the sake of our national security and the common aspirations of people around the globe, this era has to begin now."
He said there would be no lasting peace in Afghanistan unless "spheres of opportunity" are expanded for Afghans and their neighbors in Pakistan, where al-Qaida and other extremist groups have found haven.
"This is truly an international challenge of the highest order." Obama said.
Obama offered no new formula for success in the struggle against Islamic extremists in Afghanistan, nor did he commit to a specific increase in U.S. troop strength there. He named former U.N. Ambassador Richard Holbrooke as a special coordinator of U.S. policy on Afghanistan and Pakistan.