He said the death was capable of further escalating the security situation particularly in the North East and North West.

He said, “The death of Marshal Idris Deby, until Tuesday President of Chad, is undoubtedly a setback for Nigeria’s national security. Deby has been the buffer for Nigeria’s fight against multiple forces of insurgencies in the Lake Chad region. Nigeria’s policy experts must of necessity, be very worried now. Since the strategic mistake of the overthrow of Gaddafi by some western forces who brought together a motley crowd of Islamists in 2010 and waged war against Libya, the security situation in the Sahel Region has rapidly deteriorated. What was clear was that a balance of forces as a result of imported high-grade equipment of war and communication and training have tilted things in support of non-state actors opposed to the various states and governments of the Sahel region. Whatever the internal politics in Chad is, Nigeria’s concern must be our national interest. This is standard international relations. Since the treaty of Westphalia in 1641, national security is the primary interest of states. Deby’s death has the potential to complicate things for Nigeria in the Northeast and North-West. Whatever the inadequacies of Idris Deby, he died a true African hero; a courageous African. Many times, he launched an attack from Chad to confront the extremist forces operating in the North-East. He made no noise about it and he claimed no credit. He was a true friend and ally of Nigeria. For now, it is time to put on our best thinking cap. It is no longer the time for mediocrity”

He had led a brigade against rebels in the North of the country.

Debt, who is 68-year-old died a day after he was proclaimed the winner of a presidential election for his sixth term in office.

Army spokesman, General Azem Bermandoa Agouna confirmed his death on the state TV on Tuesday.

The army said Deby had been commanding his army at the weekend as it battled against rebels who had launched a major incursion into the north of the country on election day.

Deby “has just breathed his last breath defending the sovereign nation on the battlefield,” the army said.