An anonymous private donor pledged to contribute $500,000 to Warrior Homes of Collier, a planned giving gift that will significantly boost the nonprofit group’s efforts to provide supportive housing for local veterans. Warrior Homes of Collier operates four residences for local veterans: Alpha House, a short-term, transitional residence for those in recovery from substance abuse; Bravo and Charlie Houses, which serve seniors on fixed incomes who receive rent subsidies (known as supportive housing); and Delta House, a supportive housing complex with 10 apartments for up to 20 veterans, both men and women.