Given the task definition and input, reply with output. Generate an explanation for the given claim using the provided supporting material from the paragraph. Please consider the following points while generating an output. 1) The claim will always have supporting proof in the paragraph, and the paragraph will have a clear point of view supporting the claim. 2) There can be instances where direct correlation to the claim is not available. Make use of the sentences in the paragraph to provide a corresponding output supporting the claim. 3) The explanation should be at least one and at most twelve sentences long.

Paragraph: Picket lines formed outside hospitals as men and women waved signs including "Safe Staffing Saves Lives," and "Fair Pay Now. Passing ambulances let sirens wail in solidarity. Cars honked horns. "We don't do this lightly it is the first time we have gone on strike in 103 years, said Donna Kinnair, general secretary of the Royal College of Nursing. "But I am here because I think it is important that care is delivered to our patients in Northern Ireland." Some 9,000 members of the Royal College of Nursing went on strike and were supported by other healthcare workers. That forced the cancellation of routine appointments and delays to ambulance services. The situation of the nurses has been complicated by the collapse of the power-sharing government in Northern Ireland. Since no government has been in place for nearly three years, there are no ministers in place to make spending decisions such as whether to grant the pay demands of the nurses or use extra cash to reduce Northern Ireland's long waiting lists for treatment. Claim: Northern Irish nurses strike over pay, staffing levels.
Nurses in Northern Ireland walked off the job Wednesday in outrage over poor staffing and pay that lags in comparison to their counterparts in England and Wales.