Palar joined the effort for international recognition of Indonesian independence by becoming the Indonesian Representative to the United Nations in 1947.
He remained in this position until 1953.
This time period included such important events as the continued Dutch-Indonesian conflict, the transfer of sovereignty from the Dutch, and the inclusion of Indonesia as a member of the United Nations.

During the Dutch-Indonesian conflict, Palar argued the case of Indonesian independence at the UN and the Security Council, even though his status was only as an "observer" because Indonesia was not a member of the UN at that time.
After a second Police Action was unpopular and subsequently condemned by the Security Council, the Roem–Van Roijen Agreement was signed, which led to the Dutch-Indonesian Round Table Conference and the recognition of Indonesian sovereignty by the Dutch on 27 December 1949.

Indonesia was admitted as the 60th member state of the United Nations on 28 September 1950.
Addressing the General Assembly as the first Indonesian ambassador to the United Nations, Palar thanked those that supported the Indonesian cause and pledged that Indonesia would assume the responsibilities of being a member state.
Palar continued his work at the UN until being assigned the Indonesian ambassadorship for India.
In 1955, Palar was called back to Indonesia and was instrumental in planning the Asia-Africa Conference, which gathered Asian and African states, most of which were newly independent.
After the conference, Palar resumed his ambassadorial responsibilities by representing Indonesia in East Germany and the Soviet Union.

From 1957 to 1962, he became the ambassador to Canada and afterwards returned to the UN as Ambassador until 1965.
Sukarno withdrew Indonesia's membership in the UN because of the Indonesia–Malaysia confrontation and upon the election of Malaysia to the Security Council.
Palar then became the ambassador to the United States.
Under new leadership of Suharto in 1966, Indonesia requested the resumption of membership in the UN with a message to the Secretary General that was delivered by Palar.
Palar joined the effort for international recognition of Indonesian independence by becoming the Indonesian Representative to the United Nations in 1947. He remained in this position until 1953. This time period included such important events as the continued Dutch-Indonesian conflict, the transfer of sovereignty from the Dutch, and the inclusion of Indonesia as a member of the United Nations.
During the Dutch-Indonesian conflict, Palar argued the case of Indonesian independence at the UN and the Security Council, even though his status was only as an "observer" because Indonesia was not a member of the UN at that time. After a second Police Action was unpopular and subsequently condemned by the Security Council, the Roem–Van Roijen Agreement was signed, which led to the Dutch-Indonesian Round Table Conference and the recognition of Indonesian sovereignty by the Dutch on 27 December 1949.
Indonesia was admitted as the 60th member state of the United Nations on 28 September 1950. Addressing the General Assembly as the first Indonesian ambassador to the United Nations, Palar thanked those that supported the Indonesian cause and pledged that Indonesia would assume the responsibilities of being a member state. Palar continued his work at the UN until being assigned the Indonesian ambassadorship for India. In 1955, Palar was called back to Indonesia and was instrumental in planning the Asia-Africa Conference, which gathered Asian and African states, most of which were newly independent. After the conference, Palar resumed his ambassadorial responsibilities by representing Indonesia in East Germany and the Soviet Union.
From 1957 to 1962, he became the ambassador to Canada and afterwards returned to the UN as Ambassador until 1965. Sukarno withdrew Indonesia's membership in the UN because of the Indonesia–Malaysia confrontation and upon the election of Malaysia to the Security Council. Palar then became the ambassador to the United States. Under new leadership of Suharto in 1966, Indonesia requested the resumption of membership in the UN with a message to the Secretary General that was delivered by Palar.
Lambertus Nicodemus Palar