On April 5, 2022, militants from Ansaru attacked a Nigerian military base in Birnin Gwari, Kaduna State, Nigeria.

Ansaru laid dormant until 2020, emerging again as an ally to bandits in northwestern and central Nigeria, enveloping Kaduna State.

[3] Just a day before the attack, Nigerian officials stated plans to bolster security along the Abuja-Kaduna highway.

[4] On the afternoon of April 5, Ansaru gunmen, allegedly coming from Niger State, attacked a military base in the Polwire area, near the Kaduna-Birnin Gwari road.

[8] The army headquarters in Abuja called the situation immediately following the attack "calm but highly unpredictable.