Government owned and operated infrastructure may be developed and operated in the private sector or in public-private partnerships, in addition to in the public sector. As of 2008 in the United States for example, public spending on infrastructure has varied between 2.3% and 3.6% of GDP since 1950.
Definition of outpost for English Language Learners. : a large military camp that is in another country or that is far from a country's center of activity.
a strong or fortified place occupied by troops and usually surrounded by walls, ditches, and other defensive works; a fortress; fortification. any permanent army post. (formerly) a trading post. hold the fort, to defend one's position against attack or criticism. to maintain the existing state of affairs.