enclaved

First introduced in April 2000, SEZs are duty-free enclaves that offer 100% income tax exemption on revenue from exports for the first five years and 50% for the next five years.

Silicon Valley may be a "state of mind," but it's also very much a real enclave in Northern California.

He said federal and local agencies will now have to consider domestic terrorism as a serious threat, and “harden targets in the federal enclave.”