Veterans Day March

This is another march where I started out with a patriotic theme in mind. The 16 bar trio theme is played just twice with a counter melody in the bass on repeat. There is a short break with brass fanfare and a final 16 bar theme. I generally would not repeat a 32 bar 2^nd strain melody but I was rather taken with the music. It seemed completely original when written but somewhere in the back of my heard it seems like I have heard it before, but I have never been able to identify any march where I might have subconsciously copied the basic melodic line. Maybe someone could help.