A military action consisting of armed forces of one geopolitical entity entering territory controlled by another such entity, generally with the objective of conquering territory or altering the established government.
The breaching of the skin barrier.
The spread of cancer cells, bacteries and such to the organism.
The entry without consent of an individual or group into an area where they are not wanted.
A time or event in which control or authority, especially over a facility is passed from one party to the next.
The purchase of one company by another; a merger without the formation of a new company, especially where some stakeholders in the purchased company oppose the purchase.
The acquisition of a public company whose shares are listed on a stock exchange, in contrast to the acquisition of a private company.