"Radical" or "Extremist" Islam is, well, just Islam. The religion of peace (?!) has been involved in terrorism, murder, kidnapping for ransom or for slavery, since its entry into history.
Apparently, Barbary pirates had been engaged in pillage and slavery for centuries. This came to the attention of the patriots of the American Revolution, who relied on an agreement with France for some protection of shipping. The European powers basically advised the United States to just pay the ransom and/or protection money and deal with it like they had for centuries. Thomas Jefferson acting as foreign minister during the 1780s had some success negotiating cessation of hostilities with the pirate states.
However, Mohammedanism being what it is, things got worse.
When Thomas Jefferson became President in 1801, the Grand High Muckamuck of Tripoli upped the ante with a request for nearly a quarter of a million dollars (1781 dollars!) in tribute money (with no real guarantee of protection). Having received our Strictly Negative ® reply, the Big Fish In A Small Pond declared war on the USA.
Hey, how did that turn out for ya, Yusaf? Not good. USS Enterprise was an ass-kicking schooner at that time. USS Intrepid was a captured and repurposed pirate ship. And Marines, well they were already proving that -- MARINES!
It took a few years to wind down. But its conclusion was such that it took about a hundred years to flare up famously again during Theodore "Big Stick" Roosevelt's presidency. ("Perdicaris alive or Raisuli dead!")
Flash Crowndot Bonus: Perdicaris was a GUY!
Ahmet: Mrs. Perdicaris, you are a very difficult woman!The Wind and the Lion would have been so-o-o different!
Ion: That's because I'm not a woman.