U.S. President Barack Obama accepted an invitation to attend European and NATO summits scheduled in Portugal in November, the White House announced.
Leaders from the European Union said they would welcome Obama to the Lisbon summit in November.
A statement from European Council President Herman Van Rompuy and European Commission President Jose Manuel Barroso said the summit was an opportunity
to advance a common agenda.
"The transatlantic relationship is unique in its breadth and depth and includes a commitment to advancing the ideals of democracy and human rights,
fighting terrorism, and preventing the proliferation of weapons of mass destruction," the joint statement read.
The White House, for its part, said separately there was no stronger partner for the United States than Europe when it comes to advancing international security.
"We are united in our effort to protect our people and promote global security by combating terrorism and preventing the proliferation of weapons
of mass destruction," a statement from the White House said.
Obama also announced that he would meet with NATO Secretary-General Anders Fogh Rasmussen in Lisbon.
The focus of the NATO meeting would be on Afghanistan and ways to address emerging threats in the 21st century.
Obama canceled a meeting with European leaders in May.
"The president looks forward to this opportunity to meet again with EU partners, to reaffirm our transatlantic agenda, and to advance our cooperation on issues of mutual concern," the White House statement read.