The International Trade Union Confederation (ITUC; French: Confédération syndicale internationale (CSI); German: Internationaler Gewerkschaftsbund (IGB); Spanish: Confederación Sindical Internacional (CSI)) is the world's largest trade union federation. It was formed on 1 November 2006, out of the merger of the International Confederation of Free Trade Unions (ICFTU) and the World Confederation of Labour (WCL). The Founding Congress of the ITUC was held in Vienna and was preceded by the dissolution congresses of both the ICFTU and the WCL. The ITUC has three main regional organizations - the Asia-Pacific Regional Organization, the American Regional Organization, and the African Regional Organization. The ITUC also has an organization called the Trade Union Development Cooperation Network (TUDCN) whose main goal is to spread the significance of trade unions and help to develop trade unions internationally.
The ITUC traces its origins back to the First International (also known as the International Workingmen's Association) and in 2014 commemorated the 150th anniversary of the founding of the International Working Men's Association at its own world congress held in Berlin. Also in 2014, the ITUC debuted the Global Rights Index, which ranks nations on 97 metrics pertaining to workers' rights, such as freedom from violent conditions and the right to strike and unionise.
The founding congress of the ITUC was held from 1 to 3 November 2006 in Vienna, Austria.
Day two included Pascal Lamy, the Director-General of the World Trade Organization (WTO) responding to panel discussions on the impact of globalisation, including the topics "Cohesion and chaos - the global institutions" and "Global unions - global companies". Technical difficulties limited Lamy's satellite video link participation.
Leadership and officers were elected on the final day of the congress. Guy Ryder, the former general secretary of the ICFTU, was elected to the same position in the new organisation. Sharan Burrow was elected president. A Governing Council was established, with 70 elected members, and 8 additional seats reserved for youth and women’s representatives.
The Council will enable us to mobilize global membership around political and strategic initiatives and actions in order to confront global forces that work against the interests of working people and families.— Guy Ryder
The second congress of the ITUC was held from 21 to 25 June 2010 in Vancouver, Canada.
On 25 June 2010, at the conclusion of the congress, Sharan Burrow (then ITUC President) was elected General Secretary, succeeding Guy Ryder (who had been elected as Deputy Director General of the International Labour Organisation). In anticipation of her election, Burrow had resigned from her position as President of the Australian Council of Trade Unions effective 1 July 2010.
Speaking to the Congress after her election, Burrow paid tribute to her predecessor and emphasised the continuing role of organised labour in the world's emergence from the Global Financial Crisis. She also made special mention of the significance of her election as the first female leader of the world's largest trade union (against a background of high workforce participation by women and a Congress 50% of whose delegates were women):
I am a warrior for woman and we still have work to ensure the inclusion of women in the work place and in our unions. The struggles for women are multiple – too often within their families for independence, then in the workplace for rights and equal opportunity, in their unions for access and representation and then as union leaders. But the investment in and participation of women is not only a moral mandate it is an investment in democracy and a bulwark against fundamentalism and oppression. Organising woman is and must continue to be a priority for the ITUC.
The Pan-European Regional Council (PERC), a European trade union organisation within the ITUC was formed 19 March 2007. It consists of 87 national trade union centres and a total membership of 87 million. It works closely with the European Trade Union Confederation (ETUC), and Bernadette Ségol is currently the general secretary of both organisations. The organizations that are apart of the ITUC have to pay to be associated with it which is the main way from the ITUC to make money.
ITUC has been blamed for using doubtful means during their investigations in countries like Qatar, Kuwait, Saudi Arabia etc., showing state of workers as slaves. ITUC's relationship with the Gulf appears to have assumed an adversarial one. 
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