"Nous ne parlons pas aux terroristes, nous les détruisons."

Simplified Meaning:

When someone says they don't talk to terrorists, they mean they take strong action instead of trying to negotiate or make peace with them. It's like if someone is causing harm to many people, rather than trying to reason with them or find a middle ground, the focus is on stopping that person completely. For example, in history, there have been situations where governments choose to use force against groups causing violence instead of trying to discuss terms or deals. The idea is that some behaviors are so dangerous and harmful that they can’t be compromised with; they need to be stopped directly. In everyday life, this advice can imply that when faced with certain extreme problems or threats, sometimes the best solution is to take decisive action rather than trying to fix things with conversation or compromise.