The intervention in Afghanistan, for one, was a colossal failure. They didn't merely "fight the Taliban", which is an Israeli-style talking point, they undermined the country, bombed weddings, etc. The Taliban is now in charge there. 200,000 dead, and $2 trillion out the toilet.
You might be referring to the genocide of Libya as "fighting dictators" since Colonel Ghaddafi was there. Libya has since lost close to half a million lives. The civil war there is ongoing. Every Libyan I've spoken to has decried the NATO-led assault on the country. Even Obama has referred to Libya as the greatest mistake of his Presidency.
You might also be referring to Syria, which again involves some NATO countries. They've lost 300,000 lives, and they're stealing Syrian oil.
Here's an article (one of many) from Tarik Cyril Amar, he's German-Palestinian and is a historian living in Turkiye.
Steadfast Defender 2024, the bloc’s largest exercise in decades, is not only about military cohesion – it’s about selling war to the people
tarikcyrilamar.substack.com