50 years ago today, British soldiers opened fire on a civil rights demonstration in Derry, in the North of Ireland, killing 14 people. Only the struggle for a Socialist United Ireland can deliver justice for the victims of British imperialism.

Tensions are rising between Russia and Ukraine, with western politicians and journalists warning of the threat of invasion. Putin’s jingoism has highlighted the weakness of US imperialism – and the inherent instability of world relations.

After years of revolution and counter-revolution, the movement in Sudan is at a decisive juncture: either the masses organise to take power, or the reactionary junta will crush them. The question of leadership is vital.