Boris Johnson Reacts to Syria Air Strikes

The video discusses the importance of maintaining the global taboo against chemical weapons, emphasizing that the world must not tolerate their use. It highlights the historical context, noting that chemical weapons were not used in World War II, and stresses the need to restore the psychological boundary against their use in the 21st century.

What does the speaker imply about the use of chemical weapons in the 21st century?

What is the overall message the speaker conveys about the world's stance on chemical weapons?