Your clue seems to be too difficult for me as the National Martyrs' Memorial located in Nabinagar, Savar, Bangladesh, honors those who died in the 1971 Liberation War.

I know a lot about your struggle for freedom but as much as I know and saw the main structure features seven triangular prisms symbolizing key events in Bangladesh's history. I have seen mass graves, a reflection pool, unless you are talking about 1000 identified graves.

I have also knowledge about Bangladesh has three primary military branches like ours as Army, Navy, and Air Force. I can only say your query may refer to symbolic elements like the seven potentially miscounted but I have no idea how many uniforms or figures totaling a century. All the best