Nábòlún jūnduì shǐyòng jiānóngpào gǎibiàn le zhànzhēng xíngtài.
Napoleon's army used cannons to transform the nature of warfare.
Tips
history
加农炮 is a phonetic borrowing (loanword) from the English/French word 'cannon'. The character 加 (to add), 农 (agriculture/farming), and 炮 (cannon) were chosen for their sounds, with 炮 also contributing the meaning 'cannon/firearm'.
memory
Notice that 炮 (pào) already means cannon in Chinese — 加农 is just the sound borrowed from 'cannon', so 加农炮 = 'cannon-cannon', clarifying it as the wheeled artillery type.
