(A) ** Wanting to control other countries and make them part of an empire
(B) Building up of a big army
(C) when countries promise to help each other out
(D) the love of your country
EXPLANATIONS BELOW
Concept note-1: -Imperialism is the state policy, practice, or advocacy of extending power and dominion, especially by direct territorial acquisition or by gaining political and economic control of other territories and peoples.
Concept note-2: -Imperialism is the ideology and policy of extending the rule or authority of a country over that of another and its people either through military, economic or political means.
Concept note-3: -Imperialism can be defined as a doctrine, political strategy, practice, state policy, or advocacy that consists in extending power by territorial acquisition or by extending political and economic control outward over other areas.
Concept note-4: -Imperialism is when a country extends its power into other territories for economic or political gain. The goal of imperialism is to acquire resources, often through exploitation and force. Motives for imperialism include economic, cultural, political, moral, and exploratory control.
Concept note-5: -Throughout history countries have wanted to control lands beyond their borders. The word imperialism refers to the practice of a country’s extending its political power, especially through the acquisition of conquered territory. Such a country and the lands it controls are called an empire.