Complex sentence: Wooden cannons were used by the Vietnamese against the French during the Cochinchina campaign in 1862.native peoples of South America used wooden cannons against the Spanish and Portuguese during the 17th and 18th centuries.
Split into simpler sentences: Wooden cannons were used by the Vietnamese against the French during the Cochinchina campaign in 1862. The native peoples of South America used wooden cannons against the Spanish and Portuguese during the 17th and 18th centuries.