This war zone was ignored by the media of the time, being more concerned woith the UK home front and events in Russia to such an extent that it became the forgotten war, and the conbined British, Chinese, Indian units became the “forgotten army”
Many of the greatest victories against the Japanese came shortly after the D-Day landings so in many ways this part of the conflict was overshadowed, but the achievements made under General Slim who took a thouroughly demoralised and defeated army back to first class operation capability and then led it on to victories that are in many ways the far-east equivalent of what Russia was doing to the Germans, these achievements should be much more widely known.
http://www.burmastar.org.uk/overview.htm
The link will give you some idea of the conflict, two years of continous defeat by the Japanese, followed by around a further year where things were much more even, and finally about 10 months of rapid advance and destruction of Japanese military capability.
The distances involved are not generally widely understood by most folk, but the retreat must have been well over 2000 miles overland, and this partly led to the resupply problems of the Japanese and thus their subsequent defeat.
Possibly the most bitter fighting of the entire war took place at Kohima and Imphal, the distance between the opposong fornt lines was the width of a tennis court, literally, but the British held out killing tens of thousands of Japanese soldiers.
http://memorabilia.homestead.com/files/Burma_1945.html
I think perhaps one more reason that the war in Burma did was not as widely noticed was that in the fianl analysis, it was not the critical theatre in the far East, however for a relatively small outlay of allied resources, it tied up a huge amount of Japanese military assets, due to the great distances involved and the problems it then caused in resupply.
In that sense it turned out to be more of a war of attrition, had there not been the surrender of Japan due to the atomic bomb, the allied advance into Thailand anf the rest of S-E asia would have probably been very rapid as the whole of the Japanese Asian war effort was collapsing completely.