The Holy Land Foundation for Relief and Development (HLF) was a U.S.-based Islamic charity organization founded in 1989 that provided humanitarian aid to Palestinians in the West Bank and Gaza through food distribution, medical aid, and educational programs, raising millions from American Muslim donors. It operated as a nonprofit emphasizing relief efforts in conflict zones. In 2001, following the September 11 attacks, the U.S. government designated HLF as a terrorist-supporting entity, freezing its assets. In the landmark case United States v. Holy Land Foundation for Relief and Development (Case No. 3:04-cr-00240, 2007-2008), prosecuted in the U.S. District Court for the Northern District of Texas, HLF and five leaders—Shukri Abu Baker, Ghassan Elashi, Mohammad el-Mezain, Mufid Abdulqader, and Abdulraham Odeh—were convicted on 108 counts including providing material support to Hamas, conspiracy, tax fraud, and money laundering. Prosecutors alleged over $12 million was funneled to Hamas-affiliated groups, making it the largest terrorism financing prosecution in U.S. history. The trial involved over 100 witnesses, thousands of documents, and evidence including wire transfers and links to Hamas committees. All defendants were convicted in November 2008 with sentences ranging from 15 to 65 years, upheld on appeal by the Fifth Circuit Court of Appeals in 2011 (United States v. El-Mezain, 664 F.3d 467). Following the convictions, HLF's assets were seized and the organization ceased operations. The case sparked significant controversy, with critics arguing about evidentiary standards, hearsay, and First Amendment concerns, while supporters viewed it as a critical blow against terrorism funding. It highlighted tensions between national security and civil liberties, leading to increased regulatory oversight of Islamic nonprofits and influencing NGO policies.