Correct Option: B. Liberia and Sierra Leone Detailed Explanation: 1. Background on ECOMOG: - ECOMOG stands for the Economic Community of West African States Monitoring Group. It was established in 1990 by the Economic Community of West African States (ECOWAS) to intervene in conflicts within West Africa, primarily to restore peace and stability in war-torn countries. 2. Nigeria's Role in ECOMOG: - Nigeria played a significant role in ECOMOG operations, providing a substantial number of troops and resources. The country was motivated by a desire to stabilize the region, protect its interests, and assert its leadership in West Africa. 3. Countries Involved: - The two primary countries where Nigeria participated in ECOMOG peacekeeping operations are Liberia and Sierra Leone.

• Liberia:
  • The civil war in Liberia began in 1989, leading to widespread violence and humanitarian crises. ECOMOG intervened in 1990, with Nigeria contributing a large contingent of troops to help restore order and support the peace process. The mission aimed to protect civilians and facilitate humanitarian assistance.
• Sierra Leone:
  • Sierra Leone experienced a brutal civil war from 1991 to 2002, characterized by extreme violence and human rights abuses. ECOMOG, again with significant Nigerian involvement, intervened in the late 1990s to help stabilize the situation, protect civilians, and support the government against rebel forces.

4. Why Other Options Are Incorrect: - Option A: Sierra Leone and Cote d'Ivoire - While Nigeria did participate in peacekeeping in Sierra Leone, it did not have a significant ECOMOG operation in Côte d'Ivoire. The Ivorian conflict was primarily addressed through other diplomatic and military means, and Nigeria's direct involvement was limited compared to Liberia and Sierra Leone.

• Option C: Liberia and Guinea
  • Nigeria was heavily involved in Liberia but did not have a significant peacekeeping role in Guinea. Guinea was relatively stable during the major conflicts in Liberia and Sierra Leone, and thus did not require ECOMOG intervention.
• Option D: Senegal and Cote d'Ivoire
  • Nigeria did not participate in ECOMOG operations in Senegal or Côte d'Ivoire. Senegal was not a conflict zone requiring ECOMOG intervention during the relevant period, and as mentioned, Nigeria's involvement in Côte d'Ivoire was minimal.

Summary of Key Points:

• ECOMOG was established to address conflicts in West Africa, with Nigeria as a leading contributor.
• Nigeria's significant peacekeeping operations were primarily in Liberia and Sierra Leone.
• Other options (A, C, D) are incorrect due to Nigeria's limited or non-existent involvement in the mentioned countries during the ECOMOG missions.
• Understanding the context of ECOMOG and Nigeria's role is crucial for grasping the dynamics of West African peacekeeping efforts.

Revision Summary:

• ECOMOG was created to manage conflicts in West Africa, with Nigeria as a key player.
• Nigeria's main peacekeeping missions were in Liberia and Sierra Leone.
• Other options (A, C, D) do not accurately reflect Nigeria's involvement in ECOMOG operations.
• Familiarity with the historical context of these conflicts enhances understanding of Nigeria's role in regional stability efforts.