In 1574, Philip II., whose bigotry and absolutist tendencies had created a terrible enemy to Spain in her Netherland possessions, began to collect a fleet of light vessels at Santander. The Duke of Alva had failed in the Low Countries, and had been succeeded by Don Luis de Requesens, who found that he could do nothing while Admiral Boisot and his flotillas held the sea. The command of the force at Santander was conferred upon Pero Menendez de Aviles, and by the summer it was nearly ready to sail. There were 24 large ships and 188 light vessels of various classes, manned by 12,000 men. Menendez, impressed by the danger in the Atlantic, was anxious to do something more than merely support Requesens. He conceived the design of seizing the Scillies and Falmouth Haven, and occupying them as naval stations. In this way he hoped, with his powerful force, to be able at once to intercept the privateers at the outset of their Atlantic voyage, and establish a solid check upon England.

Though Requesens himself was aware of the danger of provoking England, Philip gave his assent. On Elizabeth’s side the now reorganized Royal Navy was prepared for mobilization, together with some fifty sail of armed merchantmen. But so great was the dissension in the Council that Requesens told Menendez that he could sail up the Channel unopposed. The attempt, made in the teeth of England’s sea-power, would probably have failed in the end; yet it might easily have had grave results, and Menendez was a commander of real genius. But he died in the midst of his final preparations, and so much had the armament depended upon his single dominating personality that it broke up.

Thus a great danger to England passed away with the man who perhaps of all was best fitted to direct an attack upon her; and, as Mr. Julian Corbett points out, it is worthy of note that almost at the moment when the greatest of the Spanish ocean admirals vanishes from the scene, Francis Drake, the protagonist on the English side, comes to the front.

For ten years after the death of Menendez peace nominally subsisted between England and Spain, but it was a peace that was violated every day. England, officially and unofficially, continued to assist the revolted Netherlands, and to raid Spanish and Portuguese commerce. It became an everyday affair for young Englishmen who wanted some fighting to slip across to the Low Countries. Philip countenanced plots against Elizabeth, and intrigued in England and Ireland. The exiled Queen Mary of Scotland was an ever-present source of danger. Above all, the religious side of the struggle became accentuated as time went on. In no man was militant Protestantism more incarnate than in Drake. In 1577 Elizabeth permitted him to sail on his famous raid on the Spanish Pacific Settlements, and his striking success was a new stay to the war-party. He became at once the leading figure on the English side.

In 1580 the King of Portugal died, and Philip at once seized his country, forcing Prince Antonio, the last (illegitimate) scion of the House of Avis, to flee to England. Terceira, in the Azores, held out for some years; but in 1583 it was reduced by Philip’s famous Admiral, Alvaro de Bazan, Marques de Santa Cruz, after a naval victory off St. Michael’s. The possession of Portugal and its colonies vastly enhanced Philip’s power. The most important acquisition was that of the Portuguese Navy—eleven fine galleons, besides galleys and small craft. The Spanish Empire was now for the first time a real naval power.

After his reduction of Terceira, Santa Cruz wrote to Philip. He suggested that his victorious squadron should be made the nucleus of a great fleet, and an attempt made to settle the English Question. His suggestions, if acted upon, would have meant the assembly of a far larger force than did actually sail against England five years later. Santa Cruz thoroughly understood that the English power was very formidable. Philip did not see his way to immediate action, but he issued orders in accordance with his Admiral’s suggestions. They were only very partially carried out, but something was done, and in this way began the ‘Enterprise of England.’

Certain aspects of the situation must be carefully held in mind. England and Spain, though still nominally at peace, were being steadily drawn into war by religious feeling, the jealously exclusive trade policy of Spain, and the determination of the English to thwart it. Philip, despite his religious fanaticism, was very loth to plunge into a war that was clearly against his interests, since the deposition of Elizabeth would mean the accession to the English throne of the half-French Mary Stuart. England, under Mary, might become by dint of sword and stake Roman Catholic in faith, but would lean to France in policy. The Pope believed that Philip must perforce conquer England, but Philip thought that he could gain the upper hand at sea without wiping England off the map. Though he was clumsily putting Santa Cruz’s precepts into practice and conniving at plots against Elizabeth, he did not wish for war, nor was he ready.

On her side Elizabeth personally desired peace. Sir James Crofts, the Controller of the Household, was Spain’s paid spy. The Lord Treasurer, Burghley, was a man of peace, and especially detested the—technically—dubious means by which the war-party and its instruments were teaching the world that Spain was but ‘a colossus stuffed with clouts.’ He entirely failed to see that religious ardour had cleft an impassable chasm between the nations, quite apart from the formidable trade question. The real force which was driving England into war was the intense Protestant (or Puritan) feeling of a great part of the nation, of which the war-party in the Royal Council—Walsingham, Leicester, Hatton, and others—were the chief exponents, and whose strongest helper was the famous seaman, Sir Francis Drake. The London merchants, however, to a considerable extent, were opposed to war.

In 1585 an egregious blunder on Philip’s part precipitated hostilities. There had been a failure of harvest in the Biscayan provinces. Under special safe-conduct a fleet of English corn-ships sailed to relieve the distress, but once in port they were all seized and the crews imprisoned. One ship, the Primrose, of London, escaped, carrying off with her the Corregidor (Sheriff) of Biscay, who had endeavoured to seize her. On the Biscayan official were found his directions, proving beyond all doubt that Spain was really preparing to invade England.

The country now was resolute for war, and Elizabeth determined to give Philip a sharp lesson. A fleet of royal and private ships, commanded by Drake, was ordered to sail to the rescue. Philip had already released the ships, apparently because he realized that the action had been a blunder, but this made no difference to Drake. On September 27 he appeared off Vigo, and for more than a week blockaded the port, extorting from the humiliated and helpless local authorities all that he needed, and plundering in the neighbourhood. Then he went on to the Canaries and the West Indies. Santa Cruz was ordered to prepare a squadron to pursue him, but not for six months could he sail; and Drake sacked Santiago in the Cape Verd Islands, San Domingo, Carthagena, and St. Augustine in the Spanish Main, returning in triumph to England in the summer of 1586.