1980-1988 19thcentury asia cargopreference clipperships commerce equipmentandsupplies flagsofconvenience freedomoftheseas governmentpolicy greatbritain history indianocean iran-iraqwar journeys kz6563 lawofthesea maritime(internationallaw) maritimelaw merchantmarine merchants navaloperations navigation netherlands newzealand pacificcoast(northamerica) pacificocean pacificstates persiangulf pictorialworks pictorialworksanchorline pictorialworksbrocklebankline sailingships schooners seafaringlife self-defense(internationallaw) shipping shippingmerchantshipshistory sources square-riggers steam-navigation steamboats steamshipshistory stellalykes(ship) traderoutes unitedstates war workboats