Answer:
Imperialism is never justified.
Explanation:
In the question above we see that there is a country that has deep water ports and an airfield. These two factors are elements that generate wealth for that country and that belongs to the national territory. In this case, it is not justified that another country, out of greed, uses its influence and strength to dominate these elements through imperialism, exploiting foreign wealth for its own growth, while the country that owns that wealth is devalued.
The process by which a highly developed population's rate of growth will stabilize is called Demographic Transition. Demographic transition is a model that describes the change in population over time. It is the transition in the birth and death rates over the past two hundred years.
Germany had no say the the conference. It was a treaty conference that basically punished them (Germany) after WW1