Complex sentence: However, the plan was rejected, and the war already coming to an end, though a similar operation, launched by Vice-Admiral Sir Andrew Cunningham's Mediterranean Fleet in 1940, against the Italian Fleet at Taranto, would prove to be a success.
Split into simpler sentences: However, the plan was rejected, and the war was already coming to an end. A similar operation, launched by Vice-Admiral Sir Andrew Cunningham's Mediterranean Fleet would take place in 1940, against the Italian Fleet at Taranto, and which would prove to be a success.