The organisation of a Fleet differs throughout from that of an Army. Armies only keep a small proportion of their soldiers in regular service. These form the framework of the battalions, train the recruits and keep guard in times of peace. When the order is given to mobilise, all the men who have been already trained but are living at home in civil life are called up as they are wanted: and then and not till then the Army is ready to fight.
Navies on the other hand were in the main always ready. The British Navy had all its best ships fully and permanently manned with whole-time men (called active service ratings). Measured by quality nearly the whole of its power was therefore constantly available. Measured even by numbers nearly three-quarters of the ships could go into action without calling out the Reserves. Only the oldest and most obsolete ships were manned in time of war by the Naval Reserve, i.e. men who had left the Navy and had returned to civil life. These obsolete vessels were the only part of the Fleet which had to be ‘mobilised’ like the armies of Europe.
Thus mobilisation, which is the foundation of all great armies, plays only a very small part in fleets. Every ship that really counted was always ready to steam and fight as soon as an order reached her.
The organisation of the British Home Fleets when I came to the Admiralty seemed to a mind accustomed to military symmetry to leave much to be desired. The terminology was misleading and confused. The word ‘Division’ was used in three different senses, sometimes tactical and sometimes administrative. The battle units were uneven in numbers. The degree of readiness and efficiency of the different squadrons was not apparent from the classes in which they were grouped. In consultation with Sir Francis Bridgeman, Prince Louis and Admiral Troubridge, the first Chief of the new War Staff, I designed a new and symmetrical organisation for the Fleets.
All the ships available for Home Defence were divided into the First, Second and Third Fleets, comprising eight battle squadrons of eight battleships each, together with their attendant cruiser squadrons, flotillas and auxiliaries. The First Fleet comprised a Fleet Flagship and four battle squadrons of ships ‘in full commission’ manned entirely with active service ratings, and therefore always ready. To form this Fleet it was necessary to base the former ‘Atlantic Fleet’ on Home Ports instead of on Gibraltar, and to base the battleships hitherto in the Mediterranean on Gibraltar instead of Malta. By this concentration an additional battle squadron of strong ships (King Edwards) was always ready in Home waters. The Second Fleet consisted of two battle squadrons, also fully manned with active service ratings but having about 40 per cent. of these learning and requalifying in the gunnery, torpedo and other schools. This Fleet was termed, ‘in active commission’ because it could fight at any moment; but to realise its highest efficiency, it required to touch at its Home Ports, and march on board its balance crews from the schools. In all these six battle squadrons, containing with their cruiser squadrons every modern and middle-aged ship in the Navy, there was not to be found a single reservist. No mobilisation was therefore necessary to bring the whole of this force into action. The Third Fleet also consisted of two battle squadrons and five cruiser squadrons of our oldest ships. These were only manned by care and maintenance parties and required the Reserves to be called out before they could put to sea. In order to accelerate the mobilisation of the leading battle squadrons and certain cruisers of the Third Fleet a special class of the Reserve was now formed called the ‘Immediate Reserve,’ who received higher pay and periodical training, and were liable to be called up in advance of general mobilisation.
Germany was adding a third squadron to the High Sea Fleet, thus increasing her always ready strength from 17 to 25. We in reply, by the measures set out above and various others too technical for description here, raised our always ready Fleet from 33 battleships to 49, and other forces in like proportion. On mobilisation the German figures would rise to 38; and the British at first to 57, and ultimately, as the new organisation was completed, to 65.
The reader will not be able to understand the issues involved in the completion and mobilisation of the Fleets on the eve of the war unless this organisation is mastered.
We made a great assembly of the Navy this spring of 1912 at Portland. The flags of a dozen admirals, the broad pennants of as many commodores and the pennants of a hundred and fifty ships were flying together. The King came in the Royal Yacht, the Admiralty flag at the fore, the Standard at the main, and the Jack at the mizzen, and bided among his sailors for four days. One day there is a long cruise out into mist, dense, utterly baffling—the whole Fleet steaming together all invisible, keeping station by weird siren screamings and hootings. It seemed incredible that no harm would befall. And then suddenly the fog lifted and the distant targets could be distinguished and the whole long line of battleships, coming one after another into view, burst into tremendous flares of flame and hurled their shells with deafening detonations while the water rose in tall fountains. The Fleet returns—three battle squadrons abreast, cruisers and flotillas disposed ahead and astern. The speed is raised to twenty knots. Streaks of white foam appear at the bows of every vessel. The land draws near. The broad bay already embraces this swiftly moving gigantic armada. The ships in their formation already fill the bay. The foreign officers I have with me on the Enchantress bridge stare anxiously. We still steam fast. Five minutes more and the van of the Fleet will be aground. Four minutes, three minutes. There! At last. The signal! A string of bright flags falls from the Neptune’s halyards. Every anchor falls together; their cables roar through the hawser holes; every propeller whirls astern. In a hundred and fifty yards every ship is stationary. Look along the lines, miles this way and miles that, they might have been drawn with a ruler. The foreign observers gasped.