President Barack Obama made clear Monday that he will continue to seek stronger partnerships with other nations and engagement with enemies.

"We, the people, still believe that enduring security and lasting peace do not require perpetual war," Obama said in his 15-minute speech at a public inauguration ceremony outside the U.S. Capitol.

With the theme of "One nation, one people," Obama's speech focused on national unity, equality, strong national defense and peace.

Briefly touching on foreign affairs, he did not directly name any foreign nation.

"America will remain the anchor of strong alliances in every corner of the globe," he said. "We will show the courage to try and resolve our differences with other nations peacefully -- not because we are naive about the dangers we face, but because engagement can more durably lift suspicion and fear."

Obama reaffirmed his commitment to helping nurture democracy abroad.

"We will support democracy from Asia to Africa, from the Americas to the Middle East, because our interests and our conscience compel us to act on behalf of those who long for freedom," he said.

Obama began his second term on Sunday, but his formal inauguration ceremony took place on Monday. Hundreds of thousands of people packed the National Mall in downtown Washington.

After taking the oath, Obama took part in a parade from the Capitol to the White House. Obama and first lady Michelle Obama moved mostly on an armored limousine but occasionally came out and took short walks. (Yonhap News)