Nationalist Social Democrat Party
Supreme Court of the RepublicPresident Javier Arévalo Vela [es] Nationalist Social Democrat Party (in Spanish: Partido Social Demócrata Nacionalista) was a political party in Peru founded in 1968 by a dissident fraction of general Manuel A. Odría's Unión Nacional Odriísta.PSDN was led by Julio de la Piedra.This article about a Peruvian political party is a stub.You can help Wikipedia by expanding it.