thank you so much for your responses and im sorry for my delay.
I appreciate your help a lot.
So it looks like this is not the same uniform after all.
Well i did discover a couple of things
First this is not a philippino camouflage. I have other TS from the philippines, including the first TS pattern and they are totally different patterns. Second the shirt has same cut as South Korean uniforms from the 60 and 70's i have a few korean shirts that are the exact same cut. Besides i don't recall any uniforms from the philippines with in HBT with zippered pockets on the arms.
Good news is that the TS on the photo looks very similar to my Thai vertical tiger stripes... here are some photos.. so you were right about not being the same pattern..
I think the origin of this uniform is probably south korea, but was used by US personnel during the war...
Anyway here are pics of the Thai vertical TS and the old philippines TS pattern