Ikimi led Nigeria's delegation to the Review/Extension Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) in New York City, delivering the national position address on 18 April 1995.

Additionally, Ikimi headed the delegation to the ministerial meeting of the Coordinating Bureau of the Non-Aligned Movement (NAM) in Bandung, Indonesia, from 25 to 27 April 1995.

Taking charge of the delegation, Ikimi oversaw Nigeria's participation in the Special UN Security Council Session for Foreign Ministers in New York City, delivering the country’s statement on 26 September 1995.

Ikimi represented the head of state, commander-in-chief, at the summit meeting of the non-aligned member countries of the United Nations Security Council in New York City on 4 October 1995.

Continuing his leadership, Ikimi headed the delegation to the 51st Session of the United Nations General Assembly (UNGA) from September to December 1996, delivering Nigeria's statement on 3 October 1996.

As chairman of the committee of four and five on Sierra Leone, he led negotiations and coordinated the delicate operations leading to the successful restoration of the government of President Ahmad Tejan Kabbah on 10 March 1998.

He led the ECOWAS team and was the first to enter Sierra Leone to assess the situation on the ground after the liberation of Freetown from the rebels by ECOMOG forces on 18 to 19 February 1998 to permit the return of President Ahmad Tejan Kabbah from exile in Conakry.

[3] His tenure as foreign minister coincided with the period when the West African subregion and indeed much of Africa was beset with conflicts, which included civil wars in Angola, Rwanda/Burundi, Zaire (now Democratic Republic of Congo), the Sudan, Liberia, Somalia and Sierra Leone.