Table:
0
A
B
C
D
E
1
Name
Branch
Term began
Term ended
Time in office
2
General Matthew Ridgway
U.S. Army
30 May 1952
11 July 1953
days
3
General Alfred Gruenther
U.S. Army
1 July 1953
20 November 1956
days
4
General Lauris Norstad
U.S. Air Force
20 November 1956
1 January 1963
days
5
General Lyman Lemnitzer
U.S. Army
1 January 1963
1 July 1969
days
6
General Andrew Goodpaster
U.S. Army
1 July 1969
15 December 1974
days
7
General Alexander M. Haig, Jr.
U.S. Army
15 December 1974
1 July 1979
days
8
General Bernard W. Rogers
U.S. Army
1 July 1979
26 June 1987
days
9
General John Galvin
U.S. Army
26 June 1987
23 June 1992
days
10
General John Shalikashvili
U.S. Army
23 June 1992
22 October 1993
days
11
General George Joulwan
U.S. Army
22 October 1993
11 July 1997
days
12
General Wesley Clark
U.S. Army
11 July 1997
3 May 2000
days
13
General Joseph Ralston
U.S. Air Force
3 May 2000
17 January 2003
days
14
General James L. Jones
U.S. Marine Corps
17 January 2003
7 December 2006
days
15
General Bantz J. Craddock
U.S. Army
7 December 2006
30 June 2009
days
16
Admiral James G. Stavridis
U.S. Navy
30 June 2009
10 May 2013
days
17
General Philip M. Breedlove
U.S. Air Force
10 May 2013
Incumbent
days

Questions and formulas:
Question: What time in office does the U.S. Navy have?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="u.s. navy"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E17,B2:B17="u.s. navy"),5))
Level: medium
Question: When did the term end for the U.S. Marine Corps?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="u.s. marine corps"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E17,B2:B17="u.s. marine corps"),4))
Level: medium