According to Airbus the merger between BAE Systems and EADS was the
last chance of creating a European aerospace and defence giant.
Describe what is meant by synergy and identify whether there were
strategic arguments in favour of the BAE Systems/EADS merger going
ahead.

(I do not require an introduction nor a conclusion for the essay. I
just need a direct discussion of the question – the meaning of synergy
and the strategic arguments in favor of the merger).