Free will in War and peace
: The conflick of free will and historical inevitability in tolstory's description of three battles in war and peace.
The history of commercial aviation
:The crucial contribution of the military in the developement of the DC-3 in the early years of commercial aviation
We narrowed those topics by adding words and phrases, but of a special kind: conflict,description,contribution,and development,Those nouns are derived from verbs expressing actions or relationships:to conflict,to describe, to contribute,and to develope.without such words, your topic is a static thing-free will in war and peace, the history of commercial aviation. But when you use nouns derived from verbs, you move your topic a step closer to a claim that your readers might find significant.