In the first year of the war, the Nigerian government captured the coastal city of Port Harcourt and imposed a blockade, which cut food supplies to Biafra.
Sanadkii ugu horreeyay ee dagaalka, dowladda Nigeria waxay qabsatay magaalo xeebeedka Port Harcourt, waxayna hirgalisay go'aamin adeegyada cuntada looga jaray maamulka Biafra.