The political parties that formed the opposition during the First Republic in Nigeria were the

During the First Republic in Nigeria, the opposition political parties were the Action Group (AG) and the United Middle Belt Congress (UMBC). The AG was a party based mainly in the Western Region of Nigeria, while the UMBC was a coalition of smaller parties representing the Middle Belt region of Nigeria. The AG was led by Chief Obafemi Awolowo, while the UMBC was led by Joseph Tarka. The opposition parties provided an alternative to the ruling party, the Northern People's Congress (NPC), which held the majority in the federal government.