Definition: Rewrite each original sentence in order to make it easier to understand by non-native speakers of English. You can do so by replacing complex words with simpler synonyms (i.e. paraphrasing), deleting unimportant information (i.e. compression), and/or splitting a long complex sentence into several simpler ones. The final simplified sentences need to be grammatical, fluent, and retain the main ideas of their original counterparts without altering their meanings.
Input: This was a quite sensitive topic at the time, since Poland was concerned that someday a German government would seek to reclaim some of this traditionally Germany territory given to Poland after World War II.

This was a very sensitive topic at the time. This is because Poland was worried that someday a German government would want to take back some of this original Germany territory given to Poland after World War II.