Expansionist (adjective)

1. Relating to or advocating for expansion, especially territorial expansion.
2. Relating to or characterized by territorial or economic expansion.

Origin:

From english expansion + -ist, from latin expansionem ("an expanding, an expanding out").

Examples:

1. The expansionist policy of the colonial powers led to the conquest and colonization of new territories.
2. The country's expansionist ambitions have caused tension with its neighbors.
3. The company is an expansionist, they are constantly acquiring new businesses.
4. The expansionist movement was driven by a desire for greater power and resources.
5. The historian described the empire as an expansionist state, constantly seeking new territories and resources to control.