Forced alignment. Last line in paragraph. (stretched)

When I use forced alignment to a paragraph, Last two or one word comes stretched. Track amount doesn't change. Bad appearance! How to make last line in a paragraph look aligned to left boarder?

Example:
The hideous process of bombarding open cities
from the air, once started by Germans, was re-
paid twenty-fold by the ever-mounting power of
the Allies, and found its culmination in the use
of the atomic bombs which obliterated Hiroshima
a      n      d           N    a     g     a     s     a     k    i.