'I got to hand it to you, John,' said Brockton slowly. 'It's an approach we never thought about. We're comrades-in-arms, I guess.' He reached out and shook Tideman's hand. Tideman seemed slightly embarrassed by the gesture. 'The term comrades-in-arms implies an enemy,' I said. 'What you're doing seems rather less hostile-watch-dogs.' 'Never!' retorted Brockton. 'The Reds think in terms of sea denial, we in the West in terms of sea control. The Red aim is to build a naval infra-structure round the entire world – and they're busy doing it.'
I must have looked sceptical, for he asserted, 'Let's take a look at the Drake Passage to start with. Got a chart handy?'
I indicated one on my desk. He spread it out. It was on a small scale, showing the top of South America, Cape Horn, the ocean southward to Antarctica, and the Southern Ocean as far as the Cape of Good Hope.
Brockton laid his hand across the sector south of Cape Horn.
'The Drake Passage is five hundred nautical miles wide,' he said, picking his words. 'It's what we call in terms of global naval strategy a 'choke point'. Narrow, easily controlled access points in the oceans – such as the Strait of Hormuz leading from the Persian Gulf to the Indian Ocean, or the Gulf of Aden and the Horn of Africa, or again the Straits of Malacca at Singapore, or the Cape of Good Hope…' 'All of them now Red dominated,' broke in Brockton. 'Hardly the Cape,' I said.
'No?' went on Brockton. 'Sixty per cent of the West's oil flows round the Cape. What did the United States do when the Red threat was directed towards it? Gave its tacit blessing to Marxist regimes in Angola and Mozambique with their naval and air bases able to dominate the sea-way, one of the world's most important feed routes. Pah! It makes me want to throw up!'
He looked indeed as if he wanted to throw up. But he resumed, 'The Reds gain their naval objectives by establishing puppet regimes in states adjoining strategic choke points. The way is then open for their naval squadrons – and make no mistake, there are one hell of a lot of them – to block these routes. The West is then forced to its knees and is subject to political blackmail. It's a technique they've perfected. I don't have to tell you the sorry story of each one of these global choke points – you know it already. The last one that still remains undominated is – the Drake Passage. It's a free-for-all submarine alley for American, British and Soviet nuclear- armed subs. Yet it's in mortal danger of going the way of those other choke points.'
Tideman added gravely, 'The Drake Passage, is not a straight logistics problem, Peter. It's greatly bedevilled and complicated by political factors.' 'You mean Argentina?'
'Argentina is up to the neck,' he answered. 'You must get the overall picture clear. The Drake Passage is dominated geographically to the northeast by the British-owned Falklands Islands, and to the south by the South Shetland Islands, which are also British, as you know. I want you to visualize the Drake Passage problem from the point of view of deep-diving nuclear subs…'
'Hold it for a moment, John,' Brockton broke in, 'I'm going to get something for you two to see. If I don't come back within three minutes come and look for me with that dagger of yours, John. It's as top secret as all that.'
He jumped up and was gone. Neither Tideman nor I knew how to handle the awkward silence which followed.
Jetwind gave me the opportunity to shift to neutral ground, so to speak. The ship gave a heavy jar as the bow slammed into a wave; the sea crashed along the deck. Both of us glanced automatically at the speed log.
'Twenty knots,' said Tideman. 'I've never had her so fast as this before.'
'She must be starting to steer like a bitch,' I replied. 'I hope the wheel will hold her. She's putting her head down deep. She won't achieve her true maximum this way.'
'During the wind-tunnel tests I asked for staysails between the masts just for the sake of the steering,' he said. 'The experts all opposed the idea, Aerodynamically inefficient, they maintained. I agree with that, but it isn't the complete answer in relation to ship handling.' 'Did Kay agree too?'
'I think she went along with the majority because she couldn't argue against the scientific line-up without having the practical knowledge herself.'
'What this ship needs now is some sailoring know-how…' Then Brockton reappeared.
I had never seen a chart like the one he smoothed out for us to examine. It was made of tissue-thin paper with a kind of silvered backing.
It didn't need the superscription 'Zone SS 2 Top Secret' to tell me what it was all about. Undersea channels, depths, underwater mountain ranges and ocean bottom contours were all demarcated. Here and there a small cross in purple ink showed the location of an underwater electronic beacon. It was a nuclear submarine chart of the Drake Passage.
Both men craned over my shoulder; Brockton was breathing heavily.
He traced a clearly marked channel which negotiated a maze of underwater mountain peaks. 'This is the route American subs use,' he explained. 'As you see, it runs zigzag through the centre section of the Drake Passage. It's roughly one thousand fathoms or two thousand metres deep. It finally emerges here – near South Georgia in the east. That's the sort of route the Reds aim to seal.'
Tideman added, 'The immediate Cape Horn area is no bet for the deep-diving subs – it's too shallow, only a hundred fathoms in places. They have to stay well south to negotiate the passage, beyond Diego Ramirez Island.' I said, 'Accordingly, that's the route your yachts took,' 'Aye,' he agreed. 'That was the route.'
Brockton pointed again, this time to a shallow area near the Falklands. 'This is the Burdwood Bank. It is ninety nautical miles south of the Falklands. Logistically, it's of great importance. It completely blocks the northeastern approaches to the Drake Passage as far as nuclear subs are concerned.' 'Why?' 'The Bank is so shallow,' Brockton replied. 'Its depth ranges from a mere forty-six to a hundred and forty-five metres'. It would be straight suicide for a nuclear sub to. attempt it – we've got the whole area, two hundred miles long and fifty wide, taped with electronic sensors.'
'It seems to me that, tactically speaking, the West holds all the aces’ I said. 'The entire area can be air and sea patrolled from the Falklands, or from the islands on the southern and eastern flanks.'
'I wish it were as simple as that,' answered Tideman. 'You forget that the land mass of South America at its southern tip belongs to two countries – Argentina and Chile. These two have carried on a border dispute for over a century. It flared up recently over the ownership of three tiny islands claimed by Chile which bar the eastern or Atlantic entrance to the Beagle Channel, one of the main waterways through th^ mass of islands near Cape Horn.'
'Tiny little islands like that can't be of any value to anyone, strategically or politically,' I objected.
'You don't know these Latin types, Peter,' said Brockton. 'They'd fight to their last drop of blood over a sombrero if that were an emotive issue.'
'The reason why those three little Chilean islands are so important is a question of principle,' Tideman explained. 'Argentina claims them according to the principle that she has the traditional right of access to the Atlantic Ocean. Chile equally claims right of access to the Pacific. Chile maintains a small naval base in the Beagle Channel at Puerto Williams – on one of the disputed islands.'
I burst out laughing. 'Puerto Williams! A naval base! What a joke! I staged south to Cape Horn in Albatros past Puerto Williams – it's a tin-pot little anchorage with a couple of houses!'
'That makes no difference,' Tideman said. 'It is the principle Argentina and Chile are disputing. The same thing applies to the Falklands. Argentina is strongly anti-British, as you no doubt gathered,' he went on with a slight smile. 'That white card business is one of the pin-pricks to keep the political pot boiling.'
'In addition,' said Brockton, sketching a large sector on the map, 'Argentina lays claim to all this vast area from the South Sandwich Islands in the Atlantic in the east through to the Pacific side of the Drake Passage – plus all the islands along its southern flank!'
Think of those claims in terms of nuclear sub logistics and maybe something starts to stink’ said Brockton. 'Complete control of the Drake Passage’ I suggested.
'Exactly’ said Tideman. 'Plus the Falklands themselves with an airfield which could be expanded to take heavy maritime reconnaissance planes. You get the picture, Peter. Also, as you know, Argentina has proclaimed a two- hundred-mile territorial limit round all the islands she claims. That makes – in their terms – the Drake Passage Argentinian waters. Add to that the entire sea-passage you flew over between the South American mainland and the Falklands.'
'They can't be serious’ I said. 'It's surely nothing more than a lot of flag-waving.'
'It's a great deal more than that, Peter’ said Tideman. 'Some years ago a party of Argentinian patriots who styled themselves Group Condor staged a token invasion of the Falklands after hijacking a plane and forcing it to
