"Ten żołnierz nie czuje strachu."

Translation: This soldier does not feel fear.

[Jack.Elliot]

,

Ten żołnierz nie boi się.

.

[kat747761]

Ten żołnierz się nie boi.

[Stefan873422]

Interesting. I'm not sure I would say in English that somebody feels fear. I think I would say he experiences it or use more direct language, as in, 'he has no fear' or attributive language, such as 'he is not afraid'.
Then again, it may just be my perception or idiomatic usage. I suppose if you can feel happiness you can feel fear.

[mirjamko87]

This soldier feels no fear. może być?

[Jellei]

Może być. Dodałem.