Based on Wikipedia:
In Israeli law, an outpost is an illegal Israeli settlement within the West Bank, constructed without the required authorization from the Israeli government. Under international law all Settlements (whether designated “outpost”, “neighbourhood”, or “Settlement” by the Israelis) in the West Bank are illegal.
Outposts appeared after the 1993 Oslo I Accord, when the Israeli government made commitments to freeze the building of new settlements. Although outposts were not officially supported by the government, Israeli public authorities and other government bodies played a major role in establishing and developing them.
The population of outposts generally numbers between a few and some 400 people and they are usually composed of modular homes, such as caravans. However, they can also be further developed, having more permanent housing as well as “paved roads, bus stops, synagogues and playgrounds.”
In July 2002, the Israeli government acknowledged that 69 outposts had been established since 1996.
As of August 2024, there were at least 196 Israeli outposts in the West Bank, reported BBC News, of which 29 were set up in 2023, a number greater than any previous year. BBC News also estimated that possibly 89 of the 196 outposts were built from 2019 onwards.
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