The Humane Society of the United States is the largest animal protection organization in the United States, with a mission to promote the protection of all animals. The organization works to end animal cruelty and exploitation through a variety of programs and initiatives, including advocacy, education, and rescue and care. The Humane Society of the United States has a strong track record of success, having played a key role in passing numerous animal protection laws and regulations. The organization also operates a number of animal care centers and sanctuaries across the country, providing care and shelter to animals in need. The Humane Society of the United States is funded primarily through donations from individuals and foundations.