Happy days die...but some survive

Dear enemy
I don't know
Your face
I don't know
Who you are
But be sure
I'll find it out

Dear enemy
I know
You will come
I don't know when
Or wherefrom
But be sure
I'll find it out

Dear enemy
I know
You will be there
I don't know
What you want
But be sure
I'll find it out

Dear enemy
I know
You will try to hurt me
I know
You will try to break me
And I am sure
That it will work

Dear enemy
It won't be easy
We both know that
Not easy for you?
Not easy for me?
But I am sure
I'll find it out

Dear enemy
We will meet
Anytime, anywhere
And I will smile
Into your face
No matter
If I win or lose

Dear enemy
I know you know me
So you also know
That I will fight
I won't give up
And soon
You will find it out