Sarath Fonseka, a key architect of the strategy that finally defeated the Tigers after decades of bloody conflict, said the public's fear of rebel suicide bombs had been replaced by the fear of political persecution.
"When I ended the war last year, there was hope in the country of an economic revival and a sense of freedom," Fonseka told reporters in Colombo.
"Hope has now turned to despair.
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Fonseka fell out with President Mahinda Rajapakse soon after the defeat of the Tigers last May and quit the military before unsuccessfully contesting the presidency at January elections.
He was arrested 12 days later and is now in detention amid a court martial trial for allegedly dabbling in politics while in uniform and for corrupt procurements.
"Last year around this time I was the main national hero, but today I am a political prisoner," Fonseka said, speaking at parliament, which he is allowed to attend despite being held in custody.
International rights groups have accused the