Shugaban Biya ya shiga cikin rikici na tsawon shekaru da gwamnatin Najeriya kan mallakar yankin Bakassi mai arzikin mai. Kamaru da Najeriya suna da iyaka mai nisan mil 1,000 (1600 km) kuma sun yi jayayya game da ikon mallakar yankin Bakassi. A cikin 1994 Kamaru ta nemi Kotun Duniya ta Shari'a don warware takaddamar. Kasashen biyu sun yi ƙoƙarin kafa yarjejeniyar tsagaita wuta a 1996, duk da haka, suna fama da shekaru. A cikin 2002, ICJ ta yanke hukuncin cewa Yarjejeniyar Anglo-Jamus ta 1913 ta ba da ikon mallaka ga Kamaru.
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