His tenure from 2015 to 2023 was defined by bold initiatives, regional diplomacy, and domestic challenges with continental implications. While he earned praise for his leadership in regional security and anti-corruption efforts, Buhari also faced criticism over economic protectionism, suppression of dissent, and a perceived reluctance to engage in wider African affairs fully.
Here are 11 key achievements and controversies that shaped Buhari's African legacy:
Achievements
1. Leadership in Regional Security (ECOWAS Interventions)
Buhari's legacy in West African diplomacy is perhaps best illustrated by his active role in preserving constitutional order within the Economic Community of West African States (ECOWAS). His government was instrumental in resolving The Gambia's 2016â€"2017 political crisis, in which long-time ruler Yahya Jammeh refused to step down after losing elections.
Nigeria, under Buhari's leadership, mobilised diplomatic and military pressure alongside other ECOWAS states to ensure a peaceful transfer of power to Adama Barrow. Buhari's insistence on a peaceful resolution, without plunging the region into violence, was widely hailed.
This leadership was replicated in Mali, where Buhari and Nigeria took a stand following the 2020 military coup. Though not leading ECOWAS at the time, Buhari used Nigeria's influence to push for the restoration of civilian governance, even as the regional body tried to mediate with the coup leaders. His position reflected an understanding that instability in Mali could spill across borders and threaten regional peace.
More broadly, Buhari consistently advocated for regional cooperation in responding to political instability and security threats. While some critics felt his approach lacked aggressive follow-through, Buhari's willingness to position Nigeria as a stabilising force reflected Nigeria's traditional role as a regional hegemon. His tenure reaffirmed Nigeria's commitment to peacekeeping, democracy, and ECOWAS protocols.
2. Counterterrorism collaboration through the MNJTF
One of Buhari's top priorities after assuming office was counterterrorism, especially the containment and rollback of Boko Haram and Islamic State in West Africa Province (ISWAP).
Recognising that terrorism respects no borders, Buhari revived and strengthened the Multinational Joint Task Force (MNJTF) with Cameroon, Chad, Niger, and Benin. The task force conducted joint operations that weakened Boko Haram's territorial control in Nigeria's northeast and bordering countries.
This regional collaboration marked a turning point. Whereas earlier efforts under previous administrations were more nationally focused, Buhari's security strategy acknowledged that Nigeria could not succeed alone. He personally engaged regional leaders to share intelligence, coordinate border patrols, and mobilise funding and logistics for counterinsurgency.
Despite ongoing attacks, particularly in Borno State and Lake Chad regions, the MNJTF under Buhari's tenure successfully reclaimed territory and disrupted major insurgent operations. The Buhari government's leadership in the MNJTF model is now seen as a framework for regional responses to insurgencies elsewhere in Africa, such as the Sahel.
3. The P&ID legal victory
In a landmark moment for Nigeria's sovereignty and anti-corruption drive, Buhari's government successfully challenged a $10 billion arbitration award in a UK court.
The P&ID legal victory culminated in October 2023 when a UK High Court ruled in favour of Nigeria, overturning the massive arbitration award against Process & Industrial Developments Ltd. (P&ID). The dispute stemmed from a failed 2010 gas processing contract, which led to the hefty claim due to alleged non-compliance.
Under President Buhari, Nigeria aggressively challenged the arbitration, presenting evidence that P&ID engaged in corrupt practices, including bribery and manipulation of the contract and arbitration process. The UK court found these allegations credible and ruled that enforcing the award would violate public policy, effectively nullifying the payout.
This legal victory significantly boosted Buhari's anti-corruption agenda and Nigeria's national sovereignty, preventing a potentially crippling financial loss. Beyond Nigeria, the case resonated across Africa as a precedent highlighting vulnerabilities in international arbitration, encouraging greater vigilance and reform in contract negotiations and enforcement.
4. Promotion of African self-sufficiency through agriculture
Buhari's agricultural reforms, including the Anchor Borrowers' Programme (ABP) and the Presidential Fertiliser Initiative, sought to boost Nigeria's food production and reduce dependence on imports.
Though domestically focused, these initiatives aligned with broader African Union goals for self-reliance and food security. His government empowered smallholder farmers with access to credit and inputs, helping revive key staples like rice and maize.
Buhari's push for agricultural transformation sparked interest among other African nations, particularly in West Africa. Countries such as Ghana and Senegal examined Nigeria's policy tools as templates for improving their own rural economies. Nigeria's food import bill dropped significantly between 2016 and 2020, and Buhari regularly promoted these achievements in regional and AU fora as evidence that Africa could feed itself.
However, challenges such as poor post-harvest infrastructure, inflation, and insecurity limited long-term gains. Still, Buhari's push for agriculture laid an ideological marker: that Africa's prosperity depends less on aid and more on domestic productivity. That message resonated with many African leaders confronting similar food security challenges.
5. Combating corruption on a continental scale
Buhari's reputation as a corruption fighter extended beyond Nigeria's borders. In 2018, he was named African Union Anti-Corruption Champion, a symbolic nod to his high-profile campaigns against graft. He promoted measures such as Nigeria's Treasury Single Account (TSA) and pursued asset recovery from overseas, including the repatriation of over $300 million in 'Abacha loot' from Switzerland and Jersey.
These actions resonated continentally. Buhari used regional and international platforms, including the African Union summits, to call for cooperation in asset recovery, transparency in public service, and international banking reforms to block illicit flows. His rhetoric found favour among African youth disillusioned by kleptocratic elites and governance decay.
Yet, Buhari's anti-corruption stance was not just rhetorical. His administration worked with other African governments to tighten financial regulations and encourage whistleblower policies. Though critics at home questioned the consistency of his enforcement, his image as a corruption fighter elevated Nigeria's soft power among reform-minded leaders and civil society actors across the continent.
6. Support for AfCFTA and pan-African economic integration
Initially hesitant, Buhari signed the African Continental Free Trade Area (AfCFTA) agreement in 2019 after extensive domestic consultations. Though Nigeria was the last major economy to join, its signature was crucial: without Nigeria's participation, AfCFTA would have lacked continental weight. Buhari's eventual support was seen as a commitment to Africa's collective economic future.
Before signing, Buhari expressed concern about potential job losses and trade imbalances, fears shared by many African countries. His caution sparked useful debate on how to design AfCFTA to protect weaker economies. After joining, Nigeria took part in technical discussions and policy frameworks that sought to balance trade liberalisation with economic fairness.
Buhari's endorsement of AfCFTA added momentum to the idea of "African solutions to African problems", not just politically but economically. By the time he left office, Nigeria was positioning itself as a future trade hub, with a growing emphasis on infrastructure, border digitisation, and export-led growth aligned with the AfCFTA vision.
Controversies
1. Persistent insecurity and expansion of non-state actors
Despite gains against Boko Haram, Nigeria remained plagued by widespread insecurity during Buhari's presidency. Kidnappings, banditry, and violent clashes between farmers and herders spread from the northeast to the north-central and southern regions. The rise of non-state actors created a climate of fear and lawlessness, undermining national and regional stability.
Buhari's critics argued that his administration was reactive rather than proactive in dealing with security threats. While the military launched offensives, they were often under-resourced or hampered by poor coordination. In many rural areas, local populations felt abandoned, leading to the emergence of vigilante groups and further erosion of state authority.
Regionally, Nigeria's instability had cross-border consequences. Armed groups and displaced persons moved into Niger and Cameroon, straining diplomatic and humanitarian capacities. Observers feared that Buhari's failure to resolve Nigeria's internal security crisis weakened his credibility as a regional security anchor.
2. Human rights concerns and police brutality (EndSARS)
The October 2020 #EndSARS protests, sparked by police brutality, especially by the notorious Special Anti-Robbery Squad (SARS), marked a turning point in Buhari's international image. Though initially praised for allowing youth protests, the violent crackdown at the Lekki Toll Gate, where security forces allegedly opened fire on peaceful demonstrators, triggered global outrage.
Buhari's delayed response and refusal to acknowledge the alleged shootings intensified tensions. International bodies, including the United Nations and African Union, expressed concern over human rights abuses and shrinking civic space in Nigeria. The government's dismissal of some reports and reliance on state media narratives further deepened public mistrust.
Across Africa, the EndSARS movement resonated with youth confronting similar police abuses. Buhari's perceived mishandling of the crisis stained his reputation as a democratic leader and empowered regional autocrats to justify harsh crackdowns on dissent by citing security concerns.
3. Protectionist border closure and trade fallout
In 2019, Buhari controversially closed Nigeria's land borders to curb smuggling and protect local producers. The move, lasting over a year, was meant to enforce customs regulations and encourage self-reliance. However, it had negative consequences for neighbouring countries like Benin, Togo, and Ghana, who relied on Nigeria's market.
ECOWAS protocols promoting free movement and regional integration were effectively suspended by Nigeria's unilateral action. Small traders and transporters across West Africa bore the brunt, as border communities plunged into economic distress. Critics argued that the closure contradicted Buhari's commitment to AfCFTA and regional cooperation.
Though Buhari eventually reopened the borders in late 2020, the policy left a bitter aftertaste. It showcased how Nigeria's domestic economic decisions could upend regional stability. Buhari's border closure is now frequently cited in discussions on the need for continental trade rules that balance national interests with regional obligations.
4. Twitter ban and digital repression
In June 2021, Buhari's government banned Twitter after the platform deleted a tweet deemed inciting violence. The ban lasted for seven months and was condemned globally as an attack on freedom of expression and digital rights. Nigeria's youth, entrepreneurs, and activistsâ€"many of whom relied on Twitter for work, advocacy, and mobilisationâ€"were most affected.
The government justified the ban by accusing Twitter of undermining Nigeria's sovereignty and threatening national unity. It demanded that the platform register locally and comply with Nigerian laws. Though eventually lifted in January 2022 after negotiations, the ban raised fears of increasing digital authoritarianism.
Other African governments took note. Zimbabwe, Uganda, and Ethiopia, among others, would later invoke 'national security' to justify internet shutdowns and censorship. Buhari's digital crackdown thus unintentionally set a precedent for state-led internet repression in Africa's fledgling democracies.
5. Selective anti-corruption enforcement
While Buhari's anti-corruption rhetoric won praise, critics frequently pointed to selective enforcement. High-profile opposition figures were often investigated, arrested, or prosecuted, while alleged corruption within the ruling party appeared overlooked. This dual standard raised questions about the true impartiality of his campaign.
Several corruption scandals involving Buhari's appointees, such as the mismanagement of funds in the Niger Delta Development Commission (NDDC) and the Economic and Financial Crimes Commission (EFCC), drew public ire. Yet, accountability for those within the president's political camp was inconsistent.
This perceived bias undermined Buhari's message of reform. Regionally, while some countries admired his stance, others pointed to the flaws as justification for inaction. His legacy, therefore, remains one of aspirational anti-corruption leadershipâ€"inspiring, but not entirely credible in execution.
Wycliffe Nyamasege
