21.   Russians can hardly forget, though, that the alliance was built to protect the West from their Soviet-era armed forces.

22.   Seeking to build strategic alliances, some Western airlines have been happy to take them aboard.

23.   So after World War II, we built an alliance designed to prevent the conflicts of the future.

24.   Still, in this operation, the Americans are forced to build alliances with tricky components.

25.   That could yet happen, even if Romer builds the alliances he needs.

26.   The major companies are rapidly expanding their coverage zones by combining operations through mergers, building coverage alliances and establishing additional cell phone transmission sites.

27.   The ruling makes it harder for small-party candidates to build durable alliances.

28.   The Sokaogon Chippewas have also built alliances with other tribes, sought help from environmentalists and joined forces with many white residents here who are concerned about pollution.

29.   This, in turn, required presidential candidates to build alliances across ideological and geographical lines.

30.   TiVo has had difficulty building alliances with cable companies, who are not generally interested in showcasing competing brands.