LEAD: Prague and the Hard-Liners While some Czechoslovak allies are moving toward change, Prague seems to risk drifting into the company of its hard-line allies.

But she has been unable to carry out her policies because of the opposition of Dr. Karadzic's hard-line allies in the parliament.

Deng Xiaoping and his hard-line allies crushed the 1989 democracy protests because they believed their survival was at stake.

The Government appeared convinced that with the expulsion of Mr. Melton, a hard-line ally of Assistant Secretary of State Elliott Abrams, the political climate would cool.

Still, there is concern among diplomats and opposition politicians about Mr. Calderon Sol's ability, or the willingness of his hard-line allies, to solve the social and political problems that still divide the country.

Only six months ago, Deng Xiaoping and his hard-line allies ordered troops to fire on student demonstrators, killing hundreds.

China has close relations with its hard-line Communist ally, North Korea, and Chinese maps still depict an undivided Korean peninsula with its capital in the north.

Mr. Poplasen, a hard-line Serbian ally of Mr. Milosevic, was freely elected in September in Western-monitored voting.

July 26 - Gen. Sein Lwin, a hard-line ally of General Ne Win, is named to succeed him.

The known facts suggest that Deng Xiaoping and his hard-line allies have prevailed.