The Republican Party yesterday attacked the Carter administration for "weakness" in resisting Soviet-Cuban military power in Africa and called for American retaliation against Moscow and Havana.

The United States must hold the Soviet Union globally accountable for all its actions through "the concept of linkage" used by the Nixon and Ford administrations, said Bill Brock, the Republican National Committee chairman, at a news conference.

Afor Cuba, "We must make it difficult and costly for Fidel Castro to maintain and expand his occupation forces in Africa," a GOP panel said.

Speciafically, the Republican group called for closing the liasion missions opened in Washington and Havana last year, halting negotiations for full diplomatic and trade relations, and giving military and other aid "to those Africans who oppose the Cuban forces."

Fred C. Ikle, former director of the U.S. Arms Control and Disarmament Agency, was in a new political role yesterday in discussing the ongoing U.S.-Soviet strategic arms limitation talks (SALT), which began during his 1973-1976 term in office.

As chairman of the Republican Advisory Council on National Security and International Affairs, Ikle charged the Carter administration with flinching on "linking" on SALT negotiations to Soviet actions in Africa. This salvo evidently will be carreied into this year's congressional election campaign.

With Brock, Ikle made pulbic a six-page report that said the Carter administration "appears to be unable or unwilling to cope with this (Soviet-Cuban) challenge."

After the sharply increased Soviet military buildup in the Horn of Africa, the report said, "the president and other administration officails suggested that Moscow's action might jeopardize SALT."

"But before Moscow was able to ponder what this could means," the report said,"the Caer administration got so frightened by its own boldness that it quickly explained SALT should not be linked to Soviet behavior in Africa. This flip-flop strakly revealed the weakness of the Carter arms policy . . ."

That criticism is exactly the reserve of the concern expressed by some Democratic liberals inside and outside the adnimistration. They say the administration perhaps endangered the SALT negotiations by stiffening its policy toward the Soviet Union by "linkage."

Brock told reporters,"The basic fallacy of the Carter administration in foreign policy has been their refusal to accept of linkage."

"The fact is," Brock said, "that all international relations are linked." The administration should face that squarely, he said, "state publicly that thre is linkage, and that we will view (Soviet) action in any part of the world within the context of their relationship with this country."

President Carter at Wake Forest University last friday used some strong language about Soviet policy, Brock agreed, but he said it was watered down the next day by White House aides saying the speech was asmuch intended to strengthen domestic political support as it was to reinforce foreign policy.

In Rhodesia, the GOP report charged, the Carter administration is giving "Soviet-supported totalitrian Marxists a veto over the future political order in Rhodesia," instead of supporting the "prowestern black majority" in its compromise with the whi120;te-minority government of Prime Minister Ian Smith.