- United States -- History -- Civil War, 1861-1865 -- Secret service -- Juvenile literature
- Afghan War, 2001-2021 + Secret service -- United States
- World War, 1939-1945 + Secret service -- Egypt -- Drama
- World War, 1939-1945 + Secret service -- Norway
- World War, 1939-1945 + Secret service -- France -- Fiction
- World War, 1914-1918 + Secret service -- Fiction
- World War, 1914-1918 + Secret service -- United States
- United States -- History -- Civil War, 1861-1865 -- Secret service
- World War, 1914-1918 + Secret service -- Juvenile literature
- Civil war + Secret service -- Confederate States of America
- World War, 1939-1945 + Secret service -- Europe
- World War, 1939-1945 + Secret service -- Great Britain
- Angola -- History -- Civil War, 1975-2002 -- Secret service
- United States -- History -- Revolution, 1775-1783 -- Secret service -- Comic books, strips, etc
- World War, 1939-1945 + Secret service -- France -- Paris -- Fiction
- World War, 1939-1945 + Secret service -- United States -- Drama
- Persian Gulf War, 1991 + Secret service
- War on Terrorism, 2001-2009 + Secret service -- United States
- Cold War + Secret service -- Drama
- Sino-Japanese War, 1937-1945 + Secret service -- China
- World War, 1939-1945 + Secret service -- France
- World War, 1914-1918 + Secret service -- Great Britain
- World War, 1939-1945 + Secret service -- Drama
- World War, 1914-1918 + Secret service -- Germany -- Drama
- Cold War + Secret service -- United States
- World War -- 1939-1945 -- Secret service
- World War, 1939-1945 + Secret service -- Juvenile fiction
- World War, 1939-1945 + Secret service -- Egypt -- Cairo -- Biography
- Indochinese War, 1946-1954 + Secret service -- United States
- World War, 1939-1945 + Secret service -- Great Britain -- Fiction -- Sound recordings
- World War, 1914-1918 + Secret service -- Germany -- Fiction
- Vietnam War, 1961-1975 + Secret service
- World War, 1939-1945 + Secret service -- Great Britain -- Biography
- United States -- History -- Revolution, 1775-1783 -- Secret service -- Juvenile sound recordings
- New York (State) -- History -- Revolution, 1775-1783 -- Secret service
- Afghanistan -- History -- Soviet occupation, 1979-1989 -- Secret service
- United States -- History -- Revolution, 1775-1783 -- Secret service -- Fiction
- World War, 1914-1918 + Secret service -- Juvenile fiction
- New Jersey -- History -- Revolution, 1775-1783 -- Secret service
- World War, 1939-1945 + Secret service -- United States -- Fiction
- United States -- History -- Civil War, 1861-1865 -- Secret service -- Biography -- Juvenile literature
- World War, 1939-1945 + Secret service -- United States -- Personal accounts. American
- Georgia -- History -- Civil War, 1861-1865 -- Secret service
- Vietnam War, 1961-1975 + Secret service -- Vietnam (Democratic Republic)
- World War, 1939-1945 + Secret service -- Soviet Union -- Juvenile sound recordings
- World War, 1939-1945 + Secret service -- Great Britain -- Drama
- World War, 1939-1945 + Secret service -- Germany
- World War, 1939-1945 + Secret service -- Soviet Union
- New York (State) -- History -- Revolution, 1775-1783 -- Secret service -- Juvenile literature
- Iraq War, 2003-2011 + Secret service