After the Second World War, keeping the cohesion within Stormont seemed impossible; increased economic pressures, solidified Catholic unity, and British involvement ultimately led to Stormont's collapse. As the civil rights movement of the United States gained worldwide acknowledgement, Catholics rallied together to achieve a similar socio-political recognition. This resulted in the formation of various organisations such as the Northern Ireland Civil Rights Association (NICRA) in 1967 and the Campaign for Social Justice (CSJ) in 1964.[40] Non-violent protest became an increasingly important factor in mobilising Catholic sympathies and opinion and thus more effective in generating support than actively violent groups such as the IRA.