During the 1987 to 1989 period, as the war in the north became more intense, there was a marked shift in the ideology and goals of the Janatha Vimukthi Peramuna (JVP) party in Sri Lanka. It morphed from a Marxist organization into a Sinhalese nationalist organization opposing any compromise with the Tamil insurgency. Due to its alleged role in anti-Tamil riots of July 1983, although the government supplied no evidence to support this allegation, it was banned and its leadership went underground.