ORIGINAL: Terminus
Historically, Thailand invaded French Indochina in late 1940, to exploit the perceived weakness of Vichy and conquer what the Thais thought of as their territory. The war was quite short and while it ended in stalemate militarily, a Japanese-brokered ceasefire agreement achieved the Thai political objectives.
In my timeline, there is no Vichy government and therefore the French hold on Indochina is not nearly as tenuous, keeping the Thais from going to war. Instead, the Thai government seeks closer ties with the Japanese, biding its time.
In December 1941, the Japanese have persuaded the Thais to assist them in their conquest of the SRA by contributing a large part of its armed forces for the attack on Indochina. Their reward will be control of the disputed territories in French Indochina.
Both Royal Thai Army, Air Force (re-equipped by the IJAAF to avoid "incidents") and Navy will be present in my mod.
With your timeline... one of the big deciding factors with British actions in northern Malaya was Thai neutrality. The British did not want to violate this neutrality so delayed in issuing orders for the forces in northern Malaya to advance to the 'Ledge' position. IIRC (don't have my sources readily at hand) the 'Ledge' was a serious escarpment roughly 30-50 miles within Thai territory. Had the British opted to advance 24-36 hours sooner, instead of waffling, perhaps the outcome of the campaign may have been altered in a significant fashion.
From your description above it sounds like the Thai's have firmly cast there lot with the Japanese. With that in mind will Allied dispositions in northern Malaya be altered to reflect a greater willingness for the British to advance to the 'Ledge' position? This representation could be by pre-positioning British units in Thailand just west of Patani and giving the units in Alor Star a higher fort level.
