As a war that was not supposed to be a war—the United States never formally declared it as such—and yet was already the second in a series of wars—the first being the anticolonial war against the French that won Vietnam its independence—the Vietnam War is just as hard to pin down cinematically as it is historically. Although it is now recognized as a major film genre in US cinema, the category of the Vietnam War film can also include representations of Southeast Asia during French colonialism, the brief decades of independence before the entrance of US troops, and the long legacy of the war in terms of refugee crisis, political unrest, genocide, PTSD (posttraumatic stress disorder), and protest. Not only Vietnamese but all of the peoples formerly grouped under the banner of French Indochina—including Cambodians and Laotians—were dragged into the war as willing or unwitting participants, and their experiences of combat and its aftermath are as integral to the Vietnam War film as those of the American soldiers that typically dominate the genre. The region of Southeast Asia beyond French Indochina—Thailand, Malaysia, the Philippines, Hong Kong—is also significant, both to the history of the war (as political allies, or hosts of military bases or refugee camps) and to the history of the film genre (as locations for filming, or sources for extras or actors or technical support). Outside of Southeast Asia, other nations such as the former USSR, Canada, Australia, France, and South Korea also played a part in the war, sending soldiers to the war or taking in Vietnamese, Cambodian, or Laotian refugees after the war, and these links also yielded further contributions to the Vietnam War film genre from these national cinema industries. The Vietnam War fueled many protest movements and forms of activism, becoming part of a larger, global post-1968 debate about imperialism, racism, capitalism, and militarism in many countries, and so the vigorous protests against the war also became a visible part of the film genre, especially in documentary filmmaking. As the direct survivors of the Vietnam War era begin to be supplanted by a second and even third generation for whom the war is a historical footnote, the legacy of the Vietnam War genre becomes dispersed into the larger genealogies of national cinemas and cultural memory industries, as the children of war veterans and refugees and protestors return to Southeast Asia armed with cameras and capital. Their attention is directed not only backward in time—excavating family or national histories—but also forward, forging new Vietnamese, Cambodian, Laotian, French, Australian, and American cinemas that are indelibly marked by the Vietnam War but no longer obsessed with representing it as such.