Will the strike succeed in pushing the government into a humiliating U-turn on pensions and the cuts programme as a whole?
If so, will this lead to the toppling of the Con-Dem coalition and a general election - as in 1974 during the miners' strike (see article on page 24) - and the defeat of David Cameron and co?
On the other hand, will the unions and labour movement suffer setbacks, as in Greece, or a standoff, like the workers of other countries?
These are burning questions confronting all trade unionists, young people and the working class generally.