The Monuments, Fine Arts, and Archives Section Unit (MFAA) was a program established by the Allies in 1943 to help protect cultural property in war areas during and after World War II. The group of about 400 service members and civilians worked with military forces to protect historic and cultural monuments from war damage, and as the conflict came to a close, to find and return works of art and other items of cultural importance that had been stolen by the Nazis or hidden for safekeeping. Spurred by the Roberts Commission, MFAA branches were established within the Civil Affairs and Military Government Sections of Allied armies.

Nazi plunder was organized stealing of art and other items which occurred as a result of the organized looting of European countries during the time of the Nazi Party in Germany.