The 1987 IUSY Festival was organised by the International Union of Socialist Youth

International Union of Socialist Youth

The International Union of Socialist Youth encompasses socialist, social democratic and Labour Party youth organizations from more than 100 states of the world...

 in Valencia

Valencia (city in Spain)

Valencia or València is the capital and most populous city of the autonomous community of Valencia and the third largest city in Spain, with a population of 809,267 in 2010. It is the 15th-most populous municipality in the European Union...

, Spain

Spain

Spain , officially the Kingdom of Spain languages]] under the European Charter for Regional or Minority Languages. In each of these, Spain's official name is as follows:;;;;;;), is a country and member state of the European Union located in southwestern Europe on the Iberian Peninsula...

 in July of that year.

The theme of the festival was the power of solidarity and notable events included speeches by the FSLN from Nicaragua

Nicaragua

Nicaragua is the largest country in the Central American American isthmus, bordered by Honduras to the north and Costa Rica to the south. The country is situated between 11 and 14 degrees north of the Equator in the Northern Hemisphere, which places it entirely within the tropics. The Pacific Ocean...

 and a tentative (and rather hostile) discussion between the Israeli Labor Party Youth and the General Union of Palestinian Students

General Union of Palestinian Students

The General Union of Palestinian Students is an organization run by Palestinian students since the early 1920s. It is generally considered one of the first Palestinian institutions started. It was officially launched in Cairo in 1959....

 (GUPS), the exile student wing of the Palestine Liberation Organization

Palestine Liberation Organization

The Palestine Liberation Organization is a political and paramilitary organization which was created in 1964. It is recognized as the "sole legitimate representative of the Palestinian people" by the United Nations and over 100 states with which it holds diplomatic relations, and has enjoyed...

.

Other events of note included a row between the Trotskyists of the RSL/Militant Tendency dominated Labour Party Young Socialists

Labour Party Young Socialists

The Labour Party Young Socialists was the name of the youth section of the British Labour Party from 1965 until 1993. The LPYS was the most successful of the youth sections of the Labour Party in the post war period, at one point having nearly 600 branches and attendances at its national...

 (LPYS) and the festival organisers (the British Labour Party's

Labour Party (UK)

The Labour Party is a centre-left democratic socialist party in the United Kingdom. It surpassed the Liberal Party in general elections during the early 1920s, forming minority governments under Ramsay MacDonald in 1924 and 1929-1931. The party was in a wartime coalition from 1940 to 1945, after...

 student wing, the National Organisation of Labour Students

National Organisation of Labour Students

National Organisation of Labour Students may refer to:* Labour Students, a student organisation affiliated to the British Labour Party* National Organisation of Labor Students, a former factional grouping operating within the National Union of Students of Australia...

 (NOLS) sided with the organisers in trying to keep the LPYS delegation - led by Tommy Sheridan

Tommy Sheridan

Tommy Sheridan is a Scottish socialist politician. He has had various prominent roles within the socialist movement in Scotland and is currently one of two co-convenors of the left-wing Scottish political party Solidarity....

 - out).

The festival closed with a rally addressed by the Prime Minister of Spain

Prime Minister of Spain

The President of the Government of Spain , sometimes known in English as the Prime Minister of Spain, is the head of Government of Spain. The current office is established under the Constitution of 1978...

 and Spanish Socialist Workers' Party

Spanish Socialist Workers' Party

The Spanish Socialist Workers' Party is a social-democratic political party in Spain. Its political position is Centre-left. The PSOE is the former ruling party of Spain, until beaten in the elections of November 2011 and the second oldest, exceeded only by the Partido Carlista, founded in...

 (PSOE) leader Felipe Gonzalez

Felipe González

Felipe González Márquez is a Spanish socialist politician. He was the General Secretary of the Spanish Socialist Workers' Party from 1974 to 1997. To date, he remains the longest-serving Prime Minister of Spain, after having served four successive mandates from 1982 to 1996.-Early life:Felipe was...

.