Operation Tiger Claw (October 17–19, 1967) was a military conflict between Nigerian and Biafran military forces. The battle took place in the major port of Calabar. The Nigerian were led by the infamous Benjamin Adekunle while the Biafrans were led by Maj. Ogbu Oji. The aftermath was a major loss to the Biafrans because it cost the Biafrans one of their largest ports.