Insurgencies led by the terrorist group Boko Haram have fed a long-running humanitarian crisis in the Lake Chad region of central-west Africa. To address the humanitarian crisis and contribute to the broader U.S. Government efforts to counter terrorism in Africa, USAID had 141 awards in the region that were active at some point during fiscal years 2015 through 2017, valued at over $1.1 billion. Instances of fraud and diversion in similar environments in which USAID provides assistance, such as Syria and Iraq, highlight the importance of robust oversight to address heightened risks in the Lake Chad region. To address access restrictions and insecurity that limited its ability to directly observe program activities in the Lake Chad region, USAID pursued a third-party monitoring contract to augment its programmatic monitoring and oversight. However, the execution of a third-party monitoring contract was hindered by the lack of a formal planning process. Ultimately, a third-party monitoring contract covering only Nigeria was awarded in April 2019, 4 years after the need was first identified. To prevent the diversion of aid to terrorists, USAID established requirements and implemented a due diligence process for activities with certain risks identified in the award proposals. However, USAID did not review implementers’ post-distribution monitoring reports to verify that implementers followed up on the distribution and use of USAID-funded commodities—one risk mitigation measure taken by implementers. In addition, implementers in the Lake Chad region could use noncompetitive procurements, which have been associated with fraud schemes involving humanitarian assistance in other conflict zones. Despite the heightened risks, USAID did not require implementers to inform the awarding offices of the use of noncompetitive procurements, hindering its ability to oversee implementers’ procurement activities. We made four recommendations to the Bureau for Humanitarian Assistance to help strengthen USAID’s oversight of its response to the Lake Chad crisis.