Dear [person you are addressing],

Im sorry, but I have to go. [Did you volunteer? Why?]

I will be [What will you be doing in the AIF?]

I know that it is scary that Im going to war [Describe what you think the person you are addressing is feeling and why]

Im not sure what the future holds for me [Make a prediction about what life will be like after WW1]

Your loving son,

[Your soldiers name]