The king was in an embarrassing position. The compact entered into by the two countries when the Bourbons ascended the Spanish throne, a certain respect for the senior branch of the family and the grudge which he bore Britain, tempted him many a time to revise his decision. His ministers, too, were by no means unanimous in approving Spain's neutrality. While some held that to assist rebels in their fight upon their mother country was morally wrong and politically imprudent, others, impatient of the passive inactivity to which they were reduced, modestly expressed their disapproval. One of them, Florida Blanca, more ambitious for himself than for his country, eager at any moment to embrace an opportunity of making a name for himself, continued to negotiate with the statesmen of France and secretly hoped that somehow he would have a hand in the return of Gibraltar to Spain. In this vague hope he quietly worked to enlarge and improve both the army and the fleet of his country; he collected a large number of battering cannon at Seville, and the port of Cadiz soon held a greater number of well-built vessels than it had seen since the golden age of Spanish maritime power. Cunningly holding out the prospect of a final alliance against the common enemy to France, while at the same time offering Britain to become a mediator in the bloody conflict, he succeeded in delaying any decisive action on the part of France. The French became irritable. Finally the diplomats of the two powers came to an agreement and on the twelfth of April, 1779, a treaty of alliance was signed. The terms of this treaty were as follows: France was to invade Great Britain or Ireland; if she succeeded in wresting from the British Newfoundland, she pledged herself to share the fisheries exclusively with Spain; she also pledged herself to secure for Spain the return of Minorca, Pensacola and Mobile, the Bay of Honduras and the coast of Campeche. Moreover, the two powers pledged themselves to continue the war on Britain, until that country agreed to return Gibraltar to Spain. From the United States Spain expected as reward of her services the basin of the St. Lawrence and the lakes, the unrestricted navigation of the Mississippi and all the territory lying between that river and the Alleghany mountains. The United States were by this treaty to be free to make peace with Britain, as soon as their independence was recognized, but were not in any way expected to continue war until Gibraltar was returned to Spain.