When Ethiopia's government and rebellious forces from the Tigray region agreed in November to end their conflict, diplomats hailed the peace deal as a new dawn for Africa's second most populous nation.

For many in the Amhara region, which neighbors Tigray and fought in support of federal forces during the war, the deal was something very different — a stab in the back whose failure to account for Amhara concerns portended another war.

Nine months later, that forecast looks to be coming true. Fierce fighting broke out last week across Amhara between local Fano militiamen and federal forces, leading the government to declare a state of emergency and rush troops to the front lines.