From what you have stated you were deployed in a combat zone for the last part of 2018 and the first part of 2019. Combat pay is not taxable income. The way combat pay is reported on your W-2 is in box 12 with a code Q.
If you put your information into TurboTax the same way you see on your W-2 you have reported your income for 2019 correctly from the military.
Thank you for your service.
Link to picture of W-2 reporting combat pay
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