Oglethorpe was a great builder as well as a very skilful military leader, and he used this time of peace to improve the prosperity and beauty of the towns he had settled in his colony. Savannah was already a thriving place, with fine squares, parks, and wide shaded streets. Now he turned his attention to Frederica, a town of a thousand settlers. He meant this to be a strong frontier fort, and designed an esplanade, barracks, parade-ground, fortifications, everything that could be of use to protect Frederica from an enemy.

Not far from Frederica, on the same island of St. Simons, was a small settlement called Little St. Simons. A road connected the two places, running over a beautiful prairie and through a forest, and at the edge of this forest Oglethorpe built himself a small cottage and planted a garden and an orchard of oranges, grapes and figs. Here he made his home, where he could watch the water and keep an eye on Frederica and its forts. A number of his officers built country-seats for themselves near the general's cottage, almost all of them larger and more pretentious than that of the general. Strange as it may seem, the founder of Georgia never claimed or owned any other land in his province but this one small place, and he lived almost as simply as the poorest colonist, a great contrast to the elaborate state kept by the governors of such colonies as Virginia and Maryland or the luxury of William Penn's home at Pennsbury.

Meantime other forts were built in the southern part of Georgia, one on Jekyll Island, another on Cumberland Island, a third at Fort William; and fortunately the governor saw to all this, for his province was to be for some time the buffer between the English and the Spaniards, two peoples who were constantly either on the verge of warfare or actually fighting. The mother-countries of England and Spain were always at swords' points, and those troubles on the other side of the Atlantic were sure to bring the American colonists into the same strife. Each country hectored the other. In the spring of 1740 the British government decided to attack Spain through its American possessions. France also decided to take a hand in the business, and this time joined with Spain. Ships of these two countries set sail for the West Indies and threatened the British colony of Jamaica. The English admiral, Vernon, was despatched with a large squadron to attack the enemy, but instead of sailing to Havana he turned in the direction of Hispaniola to watch the French fleet, and so lost a splendid chance to capture the Spanish stronghold of Havana. General Oglethorpe learned of this, and in May, 1641, he wrote to the Duke of Newcastle in England, explaining how matters stood in that part of America and stating what the colonists would need if they were to carry on a successful war with the Spanish Dons of Florida and the West Indies.

His letter was laid before the proper officers in England, but, as so often happened in such cases, those officers, far though they were from the scene of action, thought they knew more about conditions in Georgia and Florida than Oglethorpe did. The government delayed and delayed, while the general waited for an answer to his requests. Then he had to write again to England. Either the northern colonies or the mother-country was accustomed to supply his province with flour, but now Spanish privateers were capturing the merchant vessels that brought it. Only two English men-of-war were stationed off the coast, and they were insufficient to protect it from privateers. A Spanish rover had just seized a ship off Charleston Harbor with a great quantity of supplies on board. When Oglethorpe heard of this he sent out his guard-sloop and a schooner he had hired, met three Spanish ships, forced them to fly, attacked one of their privateers and drove it ashore. Then he bought a good-sized vessel and prepared it for service on the coast until the English should send him a proper fleet.

A large Spanish ship was sighted off the bar of Jekyll Sound on August 16th. The intrepid governor manned his sloop and two other vessels, the Falcon and the Norfork, and started in pursuit. He ran into a storm, and when the weather had cleared the Spaniard had disappeared. The storm had disabled the Falcon, and she had to put back, but Oglethorpe sailed on with the other two, laying his course for Florida, and a few days later sighted the Spanish ship at anchor.

The Spaniard was a man-of-war, and with her was another ship, by name the Black Sloop, with a record as a daring privateer. But Oglethorpe was equal in daring to any Spanish captain. He ordered his small boats put out to tow his two ships, the weather being now a calm, and as they approached the enemy, gave the command to board. The two Spanish vessels opened fire, but Oglethorpe's guns answered so vigorously that the Spaniards quickly weighed anchor, and, a light breeze coming to their aid, were able to run across the bar of the harbor.

The English followed, and, though they could not board the enemy, fought them for an hour, at the end of which the Spaniards were so disabled that they ran for the town, while half a dozen of their small galleys came out to safeguard their retreat.

Other Spanish vessels were lying in the harbor, but none dared to attack the two ships of Oglethorpe, and the governor spent that night at anchor within sight of the castle of St. Augustine. Next day he sailed for the open sea again, and there cruised up and down outside the bar, as if daring the Spaniards to come out to meet him. When they refused to come he sailed back to Frederica, having spread a proper fear of his small fleet of two ships all along the Florida coast.

Perhaps the greatest service that Oglethorpe rendered to his colony was his retaining the friendship of all the neighboring Indian tribes. This he did by always treating them fairly and impressing them with his sincere interest in their own welfare. Another man might have let the Indians see that he was merely using them to protect his own white settlers, but Oglethorpe convinced them that he was equally concerned in protecting both red men and white from ill-usage by the French and Spanish. Georgia moreover needed the friendship of the native tribes much more than the other English colonies did. It was nearest to the strong Spanish settlements in Florida, and its neighbor to the north, South Carolina, was able to furnish it very little assistance in times of need, and was often barely able to protect itself. Had the Creeks, the Chickasaws and Cherokees been allies of the Spaniards or the French instead of allies of Georgia the English settlers would have found themselves in hot water most of the time.