They set up ambushes, built obstructions in the canals to create choke points, and began to place mines in the waterways.
en.wikipedia.org Connection points between a local area network and a wide area network are the most likely choke points.
en.wikipedia.org Analysts at the 200000sqft m2 center concentrated on such arcane topics as pathway predictions, delay intervals, route segments, and choke points.
en.wikipedia.org As noted above, supplies, equipment and material was pre-stocked along roads, and near various choke points like ferry crossings so that repairs could be made quickly.
en.wikipedia.org Under his scheme, brown water would be zones in which ocean-going units could not operate at all, including rivers, minefields, straits and other choke points.
en.wikipedia.org