The three maritime radar reconnaissance squadrons of RAF
Anti-submarine operations in EASTLANT to clear the sea for Strike Fleet, particularly the vital gap between Greenland and the UK, for long a major role of the Royal Navy, had also been under way, on a surveillance basis. Now they were in earnest. Three ASW (anti-submarine warfare) groups of the RN, supported by Dutch and Norwegian surface units, combed the ocean, co-ordinating their operations with the RAF, USAF and Royal Norwegian Air Force maritime patrol aircraft based in the UK, Iceland and Norway. Air defence cover was provided by an escort carrier, land-based fighters from the UK supported by tankers, and AEW (airborne early warning)
As far as sea management was concerned, the proclamation by the British government of a state of emergency, a week previously, had been indispensable. It had enabled the Naval Control of Shipping to be instituted, the reserves to be mobilized, and a large number of dormant appointments to be activated, setting up Naval Officers-in-Charge at all the major ports. Mine counter-measures had been started, on the pathetically small scale which was all that could be done with the derisory forces available.
The first JACWA briefing, which followed that of EASTLANT, was dominated by reports, many of which came in by telephone and teleprinter during the meeting, of heavy fighting in northern Germany and the Baltic Exits. A desperate message from the Commander Allied Forces Baltic Approaches (COMB ALTAP), at Karup in Denmark, was typical:
‘To CINCNORTH, for information to JACWA:
‘ 1 Soviet ground forces with air support are attacking Aarhus.
‘2 Minelaying in Great Belt and Langeland Belt 50 per cent completed.
‘3 All operational naval forces ordered to sea. Submarines will patrol in Kattegat. Surface forces are to engage hostile surface forces as opportunity offers, retiring on Stavanger for replenishment. Operational control now with Allied Commander Naval Forces Scandinavian Approaches.
‘4 Understand Danish government now en route to UK by air.
‘5 COMBALTAP with elements of staff expects to leave Karup by air shortly for Kolsaas.’
It soon became clear, from Soviet declarations, that the political aim of Warsaw Pact military action was to overrun and neutralize the Federal German Republic, then call a halt and seek negotiations with the United States. Pact operations in the northern area of the Central Region had certainly gone according to plan. Despite spirited resistance by NATO forces, most of the Soviet’s territorial objectives had been gained. Sheer weight of numbers saw to that. The Baltic Exits were to all intents and purposes in Soviet hands, though the main channels had been closed by mines; the North Sea coast as far west as the Hook of Holland was also under Soviet control; and sea traffic between the United Kingdom and the Continent was under constant and heavy attack from large numbers of Soviet light forces. These had been sent through the Kiel Canal (an attempt to block it was too late) and operated night and day under strong fighter cover.