"blockading Porto Bello" . "British blockade" . "2,000 troops" . "11ships of line" . "Spanish victory" . "prevent a fully laden treasure fleet" . . "Great Britain" . . "Blockade of Porto Bello (1726\u20131728)" . . "4,750 men" . "blockade of Porto Bello" . . "1frigate" . . . . . "4,000+ dead" . . "United Kingdom" . "Spanish treasure fleetevades blockade." . . . . . "Most British casualties were due toyellow feverand other tropical diseases." . "Spain" . . "Blockade of Porto Bello" . . . "2sloops of war" . "Blockade of Porto Bello" . "1snow" . "Porto Bello, Panama" . "blockaded Portobello" . . "1 ship wrecked" . . . "blockade" . . .