As Ambassador to NATO , he headed the combined State - Defense Department U.S. Mission to NATO at a time when the Alliance committed to new missions in Iraq , Afghanistan and the global war against terrorism .
As Ambassador to NATO , he accepted seven new members .
As Ambassador to NATO , he headed the combined State - Defense Department U.S. Mission to NATO at a time when the Alliance committed to new missions in Iraq , Afghanistan and the global war against terrorism , and accepted seven new members .