In my country of birth we have 2 years of mandatory military service. I am wondering if I should say yes to question 15a and 18 in part 3 of form I-485. It is scary saying yes to anything on that even though its just military service. Any advice?anyone done military service before and filled up this form? Thanks. Also as my job was non combat, should I only say yes to question 18 and not 15a? Thank you.