No disagreement it's different, but the principle is the same - your urban centers, where the government is, have to be relatively stable. 100% security is never possible, but you have to avoid what is happening now, which is the growing roots of Taleban cells sprouting in Kabul and Kandahar.
I highly recommend John McCuen's take on this from his 1963 book, Art of Counterinsurgency War - he talks in depth about "uncovering your base" while chasing enemy into his sanctuaries, thus allowing him to destabilize your base.
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