The focus of counterinsurgency (coin) operations generally progresses through three stages. which stage concerns itself with expansion of stability operations across contested regions, idealy using host nation (hn) forces?
a. late stage
b. post stage
c. middle stage
d. initial stage

The term counter-insurgency refers to the actions (political and military) that aims in targeting the activities the revolutionaries. This operation consists of three stages. The stage that focuses on the expansion of stability operations onto the opposed regions by utilizing host nation forces belongs to the middle stage. Answer is C.

Efficiency is an action of doing something. for example when you take a test. good efficiency means you did well but bad effeciency or no effiency means you did bad.

You will hear a hissing sound because of the carbon dioxide escaping the can or bottle