In fact, most of the reporting seems to be an update of a few War Nerd pieces combined together. (I'm not implying plagiarism, just that Toyotas are massively over represented in low-intensity conflicts, and that more than one person has noticed it)
I was actually just looking for an old Tacoma/Hilux, although I first heard about their legendary status on Top Gear.
"Buy a Toyota Hilux - the only truck endorsed by the Taliban, the Janjaweed and the Islamic Courts of Somalia."
They could even get Joshua 'General Butt Naked' Blahyi as their spokesperson. "After sacrificing a small child to the devil, I like to strip naked and drive away in my Toyota Hilux. No matter what the terrain, my Hilux will help me escape from angry parents and local militias out for justice."
When my uncle(missionary) showed me photos of his travels around South America and Africa all the cars were Toyota pick ups(Venezuela, Amazon Jungle, Chile, Bolivia, Colombia).
When I asked him he told me the word "Toyota" in many places is what we in Spain call "4x4".