Try this!

Read the following sentence from our textbook and tell me the prepositional objects which are derived from nouns and adjectives.
"The Third Congress of the International Journalists' Organization obliged all progressive journalists to wage a vigorous struggle against the armaments drive in all its forms. for reduction of armaments, against any preparations for a new war, without slackening the struggle for banning the atomic weapon."

This is my job I have to teach/explain this!