| U.S. ballistic missile | 22 |
| U.S. auto pioneer | 17 |
| U.S. author: 1909–55 | 27 |
| U.S. author: 1909-55 | 20 |
| U.S. author-critic | 18 |
| U.S. author Shaw | 16 |
| U.S. author Philip | 18 |
| U.S. author James ___ | 21 |
| U.S. author James | 17 |
| U.S. author born on Apr. 26, 1914 | 33 |
| U.S. author and family | 22 |
| U.S. author | 11 |
| U.S. auditor | 12 |
| U.S. atty. gen. in 1962 | 23 |
| U.S. attorneys, e.g. | 20 |
| U.S. Attorney General, 1985-88 | 30 |
| U.S. Attorney General from 1961-1964 | 36 |
| U.S. Attorney General | 21 |
| U.S. attack helicopter | 22 |
| U.S. athlete: 1888-1953 | 23 |
| U.S. athlete Jim | 16 |
| U.S. astronaut Buzz | 19 |
| U.S. artist-inventor | 20 |
| U.S. artist Reginald: 1898–1954 | 38 |
| U.S. artist Raphael | 19 |
| U.S. artist and telegraphy pioneer | 34 |
| U.S. artist | 11 |
| U.S. artificial satellite | 25 |
| U.S. Army's helicopter assault division | 43 |
| U.S. Army Web-site ending | 25 |
| U.S. Army vessel | 16 |
| U.S. Army vehicle | 17 |
| U.S. Army V.I.P. | 16 |
| U.S. Army unit | 14 |
| U.S. Army training center in Va. | 32 |
| U.S. Army training branch | 25 |
| U.S. Army rifle | 15 |
| U.S. army rank | 14 |
| U.S. army post in Kentucky | 26 |
| U.S. Army O-5 | 13 |
| U.S. Army NCO ranks | 19 |
| U.S. Army medals | 16 |
| U.S. Army medal | 15 |
| U.S. Army landing point, 9/9/43 | 31 |
| U.S. Army gear | 14 |
| U.S. Army E-9 | 13 |
| U.S. Army E-6, e.g. | 19 |
| U.S. Army E-6's | 19 |
| U.S. Army E-6 | 13 |
| U.S. Army E-5, e.g. | 19 |
| U.S. Army E-5 | 13 |
| U.S. Army E-4 | 13 |
| U.S. Army E-3s | 14 |
| U.S. Army E-3 | 13 |
| U.S. Army decorations | 21 |
| U.S. Army Corps member | 22 |
| U.S. Army cops | 14 |
| U.S. Army Chief of Staff: 1972–74 | 40 |
| U.S. Army branch | 16 |
| U.S. Army award: Abbr. | 22 |
| U.S. Army attack helicopter | 27 |
| U.S. Armed Forces award for those wounded in action | 51 |
| U.S. area where industry once thrived | 37 |
| U.S. architects' org. | 25 |
| U.S. archeologist | 17 |
| U.S. anti-trafficking grp. | 26 |
| U.S. anthropologist: 1901–78 | 35 |
| U.S. anthropologist | 19 |
| U.S. anthem-starting words | 26 |
| U.S. anthem lyricist | 20 |
| U.S. anthem contraction | 23 |
| U.S. annexation: 1845 | 21 |
| U.S. and state groups | 21 |
| U.S. and others | 15 |
| U.S. and French Open winner Nastase | 35 |
| U.S. and Bethlehem | 18 |
| U.S. ancestral org. | 19 |
| U.S. ambassador's employer | 30 |
| U.S. ambassador to the Soviet Union during W.W. II | 50 |
| U.S. Ambassador in Moscow | 25 |
| U.S. ally whose capital has the letters U-S-A in the middle of its name: Abbr. | 78 |
| U.S. ally since '48 | 23 |
| U.S. ally in WWII | 17 |
| U.S. ally in W.W. II | 20 |
| U.S. ally in the American Revolution | 36 |
| U.S. alliance | 13 |
| U.S. alien's subj. | 22 |
| U.S. Airways info | 17 |
| U.S. Airways competitor | 23 |
| U.S. airspace monitor | 21 |
| U.S. airport regulator | 22 |
| U.S. airline, once | 18 |
| U.S. air-to-air missiles | 24 |
| U.S. air-to-air missile | 23 |
| U.S. air-safety overseer | 24 |
| U.S. air-safety grp. | 20 |
| U.S. air pollution monitor | 26 |
| U.S. air org. | 13 |
| U.S. air monitor | 16 |
| U.S. Air Force Academy's Cadet Chapel, for example | 54 |