Columbia subject headings:
Harvard subject headings:
Merkel, Angela, 1954-
Middle East--History--21st century.
Middle East--Politics and government--21st century.
Nationalism--Middle East
Nuclear arms control--Iran.
Obama, Barack
Sīsī, ʻAbd al-Fattāḥ, 1954-
Princeton subject headings:
Egypt--Politics and government--21st century.
Merkel, Angela, 1954-
Nationalism--Middle East.
Nuclear arms control--Iran.
Obama, Barack.
Sīsī, ʻAbd al-Fattāḥ, 1954-
Syria--History--Civil War, 2011-