Ok seems the Kha-Go is the Ha-Go...
For anyone who is interested it seems the tank was called the
Type 95 (very creative) and was renamed after the battle of
Khalkin Gol in 1939. The tank was first issued in 1937.
I gather if it had been put to service in the european theatre it would have been a disaster, but it only really saw service in China where there was little opposition to tanks of any kind.
Here is the Civolpedia I came up with.Some of these pedia entries may seem a bit long but I have tested them all and they fit fine in the game.
#PRTO_Khago
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^The Kha-Go also known as the Ha-Go is the tank favoured by the Japanese during World War II.
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^[Tanks] are fast-moving offensive units that can [attack multiple times] in a single turn and [withdraw]
from combat if they are losing (unless fighting another fast unit, of course).
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^A city must have both $LINK<oil=GOOD_Oil> and $LINK<rubber=GOOD_Rubber> in its $LINK<Strategic Resource=GCON_ResourcesS> box to build tanks.
#DESC_PRTO_Khago
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^The Japanese didn't embrace the tank, as they did not have the calvary tradition that the other countries had. In traditional Japan Calvary was used for reconnaissance in the mountainous countryside.
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^After World War I the Japanese acquired several different foreign tanks (French Renault FT & NCI, and Britain's Vickers 6-Ton & Medium C). After analyzing them they began to develop light and medium tanks.
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^In 1935 the Ha-Go begun to be issued. It became the most produced machine to the end of the Second World War. By 1937 Japan had approximately 1,060 tanks and 8 tank regiments.
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^Very simple in manufacturing and repairs, the Ha-Go's main asset was its reliable suspension. The same suspension was used on all Japanese tanks of that period. Due to a shortage of petrol diesel engines were installed, actually making the Ha-Go more advanced than other countries in this respect.
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^The crew of Ha-Go consisted of three persons (commander - gunner - loader, driver, mg-man). For the purpose of observation small slots which did not protect from bullets were used. Radio was absent, and for the purpose of negotiations a pipe was installed. Their was no mechanization of the turret, the commander turned it with the help of armed stops.
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^The armaments were unusually placed as well, the gun was directed forwards, and the machine gun backwards, to the left. The tank was insufficiently armored, and in a close fight it had no protection from anti-tank weapons. During the war in China the Japanese used the tanks as mobile pillboxes, as the Chinese didn't have any antitank weapons to speak of.