Markham described enough trust between the blockading squadron and nearby civilians for local boats to carry linen ashore, wash it, and return it. The same traffic brought fresh beef, mutton, poultry, eggs, and vegetables from Portugal and Tangier. These exchanges reduced the daily logistical and sanitary strain of remaining off an enemy port. Blockade was therefore a negotiated social relationship as well as a line of warships. A force that could pay for local services might remain healthier and more comfortable than the word "blockade" alone suggests.
Notable Point · 1:20:04-1:22:46
How blockade trade reduced local resistance
British ships blockading Cádiz obtained fresh food and laundry services from local boats, making civilian commerce part of the squadron's endurance.