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: However, when the war ended he became particularly concerned about the further development and possible use of atomic weapons and with the destruction inflicted on the world by war in general.

After the world war, he was worried about further developing atomic weapon because he thought about the destruction it caused during the war.