You need to like, you know like improve your english skills cause like your animation skills are great like, like you know like, balance it.
Seriously though, the animation is good. I see potential for major improvements. If you keep this up and wish to achieve even better projects it will happen. I will give you a like of Pros and Cons.
Pros - Good length, decent ending, nice music, fine sounds and animation is decent.
Cons - The drawings aren't the best but I know you did put some effort into some. The dialogue at moments is far too long for a short period of reading and I wouldn't suggest much in a madness cartoon. Dialogue is also a bit corny and typical.
Suggestions - Much less dialogue, improve animation, severely improve drawings and if you can more unique situations for the hero to face rather than constant killing Germans by himself or with a friend with weapons.
I personally believe if you can successfully achieve all my suggestions you may have yourself a prize winning animation.