| U.S./Canadian defense system | 28 |
| U.S./Canada's ___ Canals | 28 |
| U.S./Canada's __ Canals | 27 |
| U.S./Canada partnership | 23 |
| U.S./Canada early warning syst. | 31 |
| U.S./Canada defense grp. | 24 |
| U.S./Can./Mex. pact | 19 |
| U.S.-wide, say | 14 |
| U.S.-vs.-Europe golf competition | 32 |
| U.S.-U.S.S.R. talks | 19 |
| U.S.-U.S.S.R. negotiations | 26 |
| U.S.-U.S.S.R. breather | 22 |
| U.S.-Soviet arms pact | 21 |
| U.S.-Russian status | 19 |
| U.S.-Russia objective | 21 |
| U.S.-Oz journeyers? | 19 |
| U.S.-Ont. ___ Canals | 20 |
| U.S.-Ont. canals | 16 |
| U.S.-Mexico-Canada commerce pact | 32 |
| U.S.-Mexico border town ___ Laredo | 34 |
| U.S.-Mexico border crosser's goal, perhaps | 46 |
| U.S.-Mexico border city | 23 |
| U.S.-Mexican boundary | 21 |
| U.S.-Mex.-Can. concordat | 24 |
| U.S.-Mex.-Can. commerce pact | 28 |
| U.S.-Mex.-Can. accord | 21 |
| U.S.-made cookware? | 19 |
| U.S.-launched orbiter that photographs the earth's surface | 62 |
| U.S.-funded broadcaster, ___ Europe | 35 |
| U.S.-Croatian inventor | 22 |
| U.S.-Canadian defense acronym | 29 |
| U.S.-Canadian canals | 20 |
| U.S.-Canada mil. defense system | 31 |
| U.S.-Canada defense letters | 27 |
| U.S.-Canada defense grp. | 24 |
| U.S.-Canada defense acronym | 27 |
| U.S.-Canada canals | 18 |
| U.S.-Canada border lake | 23 |
| U.S.-Can.-Mex. pact | 19 |
| U.S.-Can. ___ Canals | 20 |
| U.S.-Can. defensive air command | 31 |
| U.S.-Can. defense org. | 22 |
| U.S.-born: abbr. | 16 |
| U.S.-born Jordanian queen | 25 |
| U.S.-born Japanese educated in Japan | 36 |
| U.S.-born Japanese | 18 |
| U.S.-born grandchild of Japanese immigrants | 43 |
| U.S.-backed investment | 22 |
| U.S., Latin Amer., etc. | 23 |
| U.S., in one sense | 18 |
| U.S., French and Australian tournaments | 39 |
| U.S., for one | 13 |
| U.S., Can., etc. | 16 |
| U.S., Can, etc. | 15 |
| U.S.'s Ryder Cup foe | 24 |
| U.S.'s most abundant energy source | 38 |
| U.S.'s largest S&L until its 2008 collapse | 50 |
| U.S. _____ | 10 |
| U.S. ___, known in New Hampshire as the Daniel Webster Highway | 62 |
| U.S. ___ | 8 |
| U.S. __ | 7 |
| U.S. youth org. | 15 |
| U.S. youth agency: 1935–43 | 33 |
| U.S. writer: 1871–1945 | 29 |
| U.S. writer-anthropologist | 26 |
| U.S. writer Paul | 16 |
| U.S. writer James et al. | 24 |
| U.S. writer Dalton ___ | 22 |
| U.S. writer and lecturer | 24 |
| U.S. writer ("The Black Camel") | 41 |
| U.S. writer | 11 |
| U.S. World Heritage site | 24 |
| U.S. workplace watchdog | 23 |
| U.S. women's singles champion: 1979 and 1981 | 48 |
| U.S. Women's Open org. | 26 |
| U.S. Women's National Soccer Team star Krieger | 50 |
| U.S. women's national soccer team captain 2000-04 | 53 |
| U.S. woman since 1920 | 21 |
| U.S. wine valley | 16 |
| U.S. wellness org. | 18 |
| U.S. weather satellite | 22 |
| U.S. weapons system | 19 |
| U.S. watershed | 14 |
| U.S. watercolorist: 1870–1953 | 36 |
| U.S. watchdog agcy. | 19 |
| U.S. warship in 1989 news | 25 |
| U.S. warning system | 19 |
| U.S. W.W. II rifles | 19 |
| U.S. voters since 1920 | 22 |
| U.S. voter | 10 |
| U.S. visitor since 1976 | 23 |
| U.S. visa type issued to visiting diplomats | 43 |
| U.S. Virgin Is., e.g. | 21 |
| U.S. violinist | 14 |
| U.S. victory site of 1945 | 25 |
| U.S. Vice President: 1933–41 | 35 |
| U.S. Vice President: 1925–29 | 35 |
| U.S. Vice President: 1845–49 | 35 |
| U.S. Vice President or Presidential candidate | 45 |
| U.S. vice president Barkley | 27 |