now for the Spanish involvement . as i know how much you vision is simply limted to what was happing in the US you dont like to look at the global support you was getting and the global pressure put on the UK at the time in a war invloving .
France
Spain
Netherlands
Austria (diplomatically )
the US
VS
the British empire
siege of Gibraltar
In 1780 and 1781, Luis de Córdova y Córdova’s fleet captured great America bound British convoys, doing much damage to British military supplies and commerce.
The siege of Gibraltar, June 16, 1779 to February 7, 1783, was the longest lasting Spanish action in the war. Despite the larger size of the besieging Franco-Spanish army, at one point numbering 33,000, the British under George Augustus Elliott were able to hold out in the fortress and were resupplied by sea three times. Luis de Córdova y Córdova was unable to prevent Howe’s fleet returning home after resupplying Gibraltar in October 1782.[7]
The combined Franco-Spanish invasion of Minorca in 1781 met with more success; Minorca surrendered the following year, and was restored to Spain after the war, nearly eighty years after it was first captured by the British
York town
The Spanish also assisted in the Siege of Yorktown in 1781, the critical and final major battle of the War. French General Jean-Baptiste Donatien de Vimeur, comte de Rochambeau, commanding his country’s forces in North America, sent a desperate appeal to François Joseph Paul de Grasse, the French admiral designated to assist the Colonists, asking him to raise money in the Caribbean to fund the campaign at Yorktown. With the assistance of Spanish agent Francisco Saavedra de Sangronis, the needed cash, over 500,000 in silver pesos, was raised in Havana, Cuba within 24 hours. This money was used to purchase critical supplies for the siege, and to fund payroll for the Continental Army
West Indies and Gulf Coast
Spanish forces overran the British lines during the climactic Battle of Pensacola (1781).
In the Caribbean, the main effort was directed to prevent possible British landings in Cuba, remembering the British expedition against Cuba that seized Havana in the Seven Years’ War. Other goals included the reconquest of Florida (which the British had divided into West Florida and East Florida in 1763), and the resolution of logging disputes involving the British in Belize.
On the mainland, the governor of Spanish Louisiana, Count Bernardo de Gálvez, led a series of successful offensives against the British forts in the Mississippi Valley, first capturing Fort Bute at Manchac and then forcing the surrender of Baton Rouge, Natchez and Mobile in 1779 and 1780. While a hurricane halted an expedition to capture Pensacola, the capital of British West Florida, in 1780, Gálvez’s forces achieved a decisive victory against the British in 1781 at the Battle of Pensacola giving the Spanish control of all of West Florida. This secured the southern route for supplies and closed off the possibility of any British offensive into the western frontier of United States via the Mississippi River.
When Spain entered the war, Britain also went on the offensive in the Caribbean, planning an expedition against Spanish Nicaragua. A British attempt to gain a foothold at San Fernando de Omoa was rebuffed in October 1779, and an expedition in 1780 against Fort San Juan in Nicaragua was at first successful, but yellow fever and other tropical diseases wiped out most of the force, which then withdrew back to Jamaica.
Bernardo de Gálvez, Count of Gálvez
Following these successes, an unauthorised Spanish force captured the Bahamas in 1782, without battle. In 1783 Gálvez was preparing to invade Jamaica from Cuba. but the war ended .
