subimperialism

noun1

1. •
   A form of imperialism (“policy of forcefully extending a nation's authority by territorial gain or by the establishment of economic and political dominance over other nations”) which is subordinate to another imperialist power.

   • And the situation is further complicated by the nascent or sub-imperialisms of the Indians and the Chinese, as shown for example by the dispute over Indonesian actions against Chinese traders. — 1971