- World War, 1939-1945 + Secret service -- Germany
- Afghan War, 2001- + Secret service
- New York (State) -- History -- Revolution, 1775-1783 -- Secret service -- Juvenile literature
- World War, 1939-1945 + Secret service -- Great Britain -- Drama
- United States -- History -- Revolution, 1775-1783 -- Secret service -- Drama
- World War, 1939-1945 + Secret service -- Soviet Union -- Young adult literature
- World War, 1939-1945 + Secret service -- Soviet Union
- United States -- History -- Revolution, 1775-1783 -- Secret service
- World War, 1939-1945 + Secret service -- Germany -- Fiction
- Vietnam War, 1961-1975 + Secret service -- United States
- World War, 1939-1945 + Secret service -- Drama
- World War, 1914-1918 + Secret service -- Drama
- World War, 1939-1945 + Secret service -- Great Britain -- Biography
- World War, 1939-1945 + Secret service
- Afghan War, 2001- + Secret service -- United States
- World War, 1914-1918 + Secret service -- Great Britain -- Anecdotes
- World War, 1939-1945 + Secret service -- Great Britain -- Young adult literature
- United States -- History -- Revolution, 1775-1783 -- Secret service -- Juvenile fiction
- United States -- History -- Civil War, 1861-1865 -- Secret service -- Juvenile literature
- World War, 1939-1945 + Secret service -- Soviet Union -- Juvenile literature
- World War, 1939-1945 + Secret service -- Egypt -- Drama
- World War, 1939-1945 + Secret service -- Soviet Union -- Comic books, strips, etc -- Juvenile literature
- World War, 1939-1945 + Secret service -- Great Britain -- Comic books, strips, etc -- Juvenile literature
- Afghanistan -- History -- Soviet occupation, 1979-1989 -- Secret service
- World War, 1939-1945 + Secret service -- China -- Shanghai -- Drama
- World War, 1939-1945 + Secret service -- France
- World War, 1939-1945 + Secret service -- Egypt -- Cairo -- Biography
- World War, 1939-1945 + Secret service -- Germany -- Drama
- United States -- History -- Civil War, 1861-1865 -- Secret service
- World War, 1914-1918 + Secret service -- Fiction
- World War, 1939-1945 + Secret service -- United States -- Fiction
- World War, 1939-1945 + Secret service -- Great Britain -- Juvenile literature
- World War, 1939-1945 + Secret service -- Juvenile literature
- World War, 1914-1918 + Secret service -- United States
- United States -- History -- Revolution, 1775-1783 -- Secret service -- Juvenile literature
- World War, 1939-1945 + Secret service -- United States -- Drama
- Vietnam War, 1961-1975 + Secret service -- Vietnam (Democratic Republic)
- World War, 1939-1945 + Secret service -- Great Britain -- Fiction
- Iraq War, 2003-2011 + Secret service -- Drama
- World War, 1914-1918 + Secret service -- Germany
- World War, 1939-1945 + Secret service -- Great Britain -- Sources
- World War, 1939-1945 + Secret service -- France -- Paris -- Fiction
- World War, 1939-1945 + Secret service -- United States -- Young adult literature
- World War -- Secret service -- Great Britain -- Biography
- World War, 1939-1945 + Secret service -- Young adult fiction
- Cold War + Secret service
- World War, 1939-1945 + Secret service -- Philippines
- World War, 1914-1918 + Secret service -- Comic books, strips, etc
- World War, 1939-1945 + Secret service -- United States
- World War, 1939-1945 + Secret service -- Fiction