It was one of the agreements made by the Trust that assistance should be given the colonists. Hence Oglethorpe speaks of "the L58 delivered to Mr. McIntosh at Darien, it was to support the Inhabitants of Darien with cloathing and delivered to the Trustees' Store there, for which the Individuals are indebted to the Trust. Part of it was paid in discharge of service done to the Trustees in building. Part is still due and some do pay and are ready to pay."[89] The active war with Spain commenced by the murder of two unarmed Highlanders on Amelia Island, who had gone into the woods for fuel. It was November 14, 1739, that a party of Spaniards landed on the island and skulked in the woods. Francis Brooks, who commanded a scout boat, heard reports of musketry, and at once signaled the fort, when a lieutenant's squad marched out and found the murdered Highlanders with their heads cut off and cruelly mangled. The Spaniards fled with so much precipitation that the squad could not overtake them, though they pursued rapidly. Immediately Oglethorpe began to collect around him his inadequate forces for the invasion of Florida. In January, 1740, he received orders to make hostile movements against Florida, with the assurance that Admiral Vernon should co-operate with him. Oglethorpe took immediate action, drove in the Spanish outposts and invaded Florida, having learned from a deserter that St. Augustine was in want of provisions. South Carolina rendered assistance; and its regiment reached Darien the first of May, where it was joined by Oglethorpe's favorite corps, the Highlanders, ninety strong, commanded by Captain John Mohr McIntosh and Lieutenant MacKay. They were ordered, accompanied by an Indian force, to proceed by land, at once, to Cow-ford (afterwards Jacksonville), upon the St. Johns. With four hundred of his regiment, Oglethorpe, on May 3d, left Frederica, in boats, and on the 9th reached the Cow-ford. The Carolina regiment and the Highlanders having failed to make the expected junction at that point, Oglethorpe, who would brook no delay, immediately proceeded against Fort Diego, which surrendered on the 10th, and garrisoned it with sixty men under Lieutenant Dunbar. With the remainder he returned to the Cow-ford, and there met the Carolina regiment and McIntosh's Highlanders. Here Oglethorpe massed nine hundred soldiers and eleven hundred Indians, and marched the whole force against Fort Moosa, which was built of stone, and situated less than two miles from St. Augustine, which the Spaniards evacuated without offering resistance. Having burned the gates, and made three breaches in the walls, Oglethorpe then proceeded to reconnoitre the town and castle. Assisted by some ships of war lying at anchor off St. Augustine bar, he determined to blockade the town. For this purpose he left Colonel Palmer, with ninety-five Highlanders and fifty-two Indians, at Fort Moosa, with instructions to scour the woods and intercept all supplies