1941, Monday 24 November;
The planning team had worked hard for three months, identifying strategic goals, objectives, both desirable and obtainable, and likely defensive positions. These had to be balanced against what of their own forces were available, what units could be used for, their strengths and capabilities. Both Army and RAF units were included in the plans, along with some Royal Navy involvement in coastal operations.
The main objective was the occupation of Songkhla, a small coastal port on the eastern side of the Kra Isthmus, 50 road miles from the Malayan border. The strategic aim of denying it to the Japanese, meant logistically, a Japanese invasion force, once landed on the Kra Isthmus, with the purpose of attacking Northern Malaya, was estimated as being able to maintain just a single division, owning Songkhla would allow them to tripled that!
The problem was how to hold Songkhla, where might a defensive stand be made, how far up the Kra Isthmus might they go. And how many brigades, battalions, etc, did they need for this. And of course, the entire force might be cut off by landings much further south along the eastern shores of Malaya. So, the east coast of Malaya had to be defended, as well as forces found to advance into Thailand.
And as always, logistics came into it, not only denying the Japanese a port for their logistical needs, but the need to supply the British led forces in southern Thailand. It was recognised that it would be highly unlikely that any supply could be from the sea, with the expectation that Japan would have control of the sea’s that far north. In addition, the road network of southern Thailand was far poorer than Malaya, the roads, in the main, being earth packed or at best gravelled. Therefore, the British occupying force would have to be supplied and supported along a single-track railway and the one metalled road, the main highway, which ran close to the railway, down the Kra Isthmus to Hat Yai, all exposed to interdiction from the air.
It had always been accepted that British forces would have to advance into Thailand quickly, on the outbreak of war, to seize “the Ledge”, a narrow road which ran high along a cliff edge above the Pattani river, about 40 miles inside the Thai border. This road, from the small port of Pattani, allowed a back door route, coming into Malaya just south of Sungai Petani, bypassing both the Jitra and embryonic Gurun defensive lines, thus compromising the entire defence of North-Western Malaya. In addition, it would always be desirable to advance into Thailand from the Jitra line, to provide some forward positions. So, come what may with regard to the Matador operation being implemented or not, these advances had to happen.
In addition, any advance on Hat Yai and Songkhla, would have to be paired with an occupation of the port of Pattani, south of them, and the small but strategically important town of Yala which led to Pattani. This would require a force of its own, in addition to the main thrust towards the Kra Isthmus. Also, an advance into the Kra Isthmus couldn’t be done without leaving troops to occupy both Hat Yai and Songkhla. A major factor in planning these advances, was the recognition that Pattani, Songkhla and Hat Yai all held a battalion size garrison of Thai infantry, with some small support elements. Therefore, the British would have to conduct, as Lord Gort put it, “a Blitzkrieg of their own” to secure the strategic points and be able to neutralise the Thai forces. The capabilities of the Thai forces weren’t held in particular high regard, but given the chance, they could seriously impair any advance and endanger the entire operation.
Speed and surprise would be essential, but the single road north, from Alor Star, through Hat Yai and up into the Kra Isthmus would not be able to take the entire force. Although stated as metalled, its composition was poorly constructed, and indeed in parts reverted back to a gravelled road. In addition, it had a lot of bridges, required to cross the many streams and small rivers, but many, built to carry oxen and cart, were very narrow, restricting them to one way only operation for motor vehicles. Significantly, the Thai authorities had been upgrading their bridges in the Songkhla and Pattani provinces, large number of cut timber were being left beside them, while a few small working parties strengthen the bridges, or rebuilt them wider. Intelligence coming from friendly Thai sources indicated that this was at the behest of the Japanese. Off the main highways, the capacity of road bridges was much in question, other than those around the towns, the rest had to be crossed with extreme caution.
As a consequence, much heavy equipment would have to be taken by rail, and married up with the parent units at the appropriate locations. This in turn required a lot of planning, use of the single-track railway would require following a very controlled timetable of movement, the marshalling yards and engine turntable at Hat Yai being a major key to this. To enable this part of the plan to function, many trains would have to be preloaded and parked in sidings in Northern Malaya, well apart from the rest of their units, fully underlining the need for an early decision on whether to launch Matador or not. If it wasn’t to be implemented, it would take several days in some instances, before the heavy equipment could be unloaded and joined up with their corresponding units in their defensive positions.
All these problems highlighted the dangers of Operation Matador, implemented too late, or thrown badly off its timetable, would cause chaos, and potentially place the entire attacking force in danger of defeat, as well as compromising the defence of Northern Malaya. This was something both Singapore and London were painfully aware of, and had to be balanced against the rewards of a successful operation, the breaking of Thai neutrality notwithstanding.
Nevertheless, Churchill and the Chiefs of Staff had agreed to the Matador plan in principle, although not its implementation, giving Lord Gort the authority to begin the preparations to make it viable, and so they begin loading spare rail stock, and moving them to their allotted sidings, some as far down as Gemas, while a few units within the command, not allocated to the main defences, would be moved to better locations, to help facilitate the operation. There was a lot of work to be done, rail sidings still uncomplete, trains not yet released owing to ongoing domestic operations, and troops still training, but over the next couple of weeks the pieces of the jigsaw would come together. There would be an alternative military option, to that of just defending Malaya at the Jitra Line, on the table, if the time came.