We decrypted messages from the Biafran war that have remained secret for 50 years
We decrypted messages from the Biafran war that have remained secret for 50 years: A freedom march for Biafra held to mark the anniversary of the unilateral declaration of independence in 1967 that sparked a brutal 30-month civil war in Nigeria. Stefano Montesi – Corbis/Getty Images This year marks the 50th anniversary of the end …