Thousands of doctors in England are staging their 11th walkout on Thursday in a long-running dispute with the government over pay and working conditions, disrupting hospital services just days before the UK general election.

The five-day strike by junior doctors—those in the early years of their careers—shines a spotlight on the troubles besetting the chronically underfunded National Health Service, Britain’s state-funded public health system, a topic that is a top concern for voters going to the polls on July 4.