about は and が

[daniel15028]

hi everyone, I thought of the sentence "ore ga nihon wa suru"
after thinking about it for a while, I'm not sure if it's correct to drop the wa so it would sound like this "ore ga nihon suru", I'm not asking which one should be used but rather if both of them are correct or only the first
I'd be glad to get an explanation too

[Hikaru_C]

what are you trying to say in English?