H.Res. 866 is a congressional resolution condemning the persecution of Christians in Nigeria and expressing support for President Trump's decision to designate Nigeria as a Country of Particular Concern over religious freedom violations. According to the resolution, Christian communities in Nigeria have faced systematic violence by militant groups and government neglect, with an estimated 50,000 to 100,000 Christians killed since 2009 and roughly 35 killed daily in 2025. The resolution criticizes the Nigerian government for denying religious persecution exists, maintaining death-penalty blasphemy laws, and failing to prevent attacks despite warnings. The House calls on the U.S. government to use diplomatic and economic pressure on Nigeria to end violence against Christians, repeal blasphemy laws, protect religious freedom, and coordinate with international partners on humanitarian aid. The resolution does not authorize funding or establish specific timelines but expresses the House's readiness to support executive action on the issue.