Not everyone might agree with me, but I consider "folk" music to be an acoustic music that tells stories from the past. In other words, usually old songs being sung by artists now living. Groups like Pentangle, Fairport Convention, Woody Guthrie, The Kingston Trio, etc are "folk" groups.
"Folk Rock" is another thing entirely. It's modern music with a folk like flavor, and can be performed with either acoustic or electric instruments, but is still trying to tell a story. Back in the sixties and early seventies it was used to try to carry ideas out to people, and get messages across.
This was people like Arlo Guthrie, Bob Dylan, Donovan, Crosby Stills and Nash, etc. I think it's a matter of taste rather than nationality as far as your choice of "folk/folk rock music" goes I love Pentangle, and Fairport Convention, but grew up listening to my father's Kingston Trio albums. I love both British, and American bands I live in the US Favorite band and song... that's a hard one... Well, I'd have to step a shade farther to the left into a folk rock fusion with Renaissance and say {I'm sure you already guessed it Lady Silver} Blackmore's Night as the band, and "Under a Violet Moon" as the song... I really can't say for sure about Nick Drake, but I would tend to say Acoustic Rock with an Alternative flavor. "Folk" definitely has a place within the R&P section...
Keep in mind that in America, Country music and The Blues are both forms of Folk Music. In the 1930's to 1950's, The Blues was actually called "The Folk Blues" and Country Music and Folk were indistinguishable until Woody Guthrie came along. Here's two clips... one, an awesome example of contemporary American Folk Blues as performed by Keb' Mo.
The other, an example from Dwight Yoakam how Country can exist in Folk's lane: http://www.youtube.com/watch?v=Pl9NkY6_I... http://www.youtube.com/watch?v=KPTQHUNG8... So really in America, the existence of The Blues and Country music kind of takes up so much of the Folk Oxygen, that there is a very thin lane for Folk and Folk Rock to live within. That's why a lot of youngsters think that anything with an acoustic guitar is "Folk. They really truly don't understand their own musical heritage.
Here are some other awesome American Folk pieces you should browse through: Townes Van Zandt ~ http://www.youtube.com/watch?v=tYkFKNroB... Arlo Guthrie ~ http://www.youtube.com/watch?v=GguFmYRryz8 Steve Earle ~ http://www.youtube.com/watch?v=xvaEJzoaYZk Guy Clark ~ http://www.youtube.com/watch?v=XQGjkBuMGAU&playnext_from=TL&videos=wE11TygUeeA Drive By Truckers ~ http://www.youtube.com/watch?v=-Q-Ma6UlrtA Jason Isbell & The 400 Unit ~ http://www.youtube.com/watch?v=t-gIJKAfCvw&playnext_from=TL&videos=McGK8YqarIo Psychelops is right about the difference between Dylan 67 and Donovan 67, because Dylan had veered so close to Country music with John Wesley Harding and Nashville Skyline. First he bridged the Folk gap with Rock (Highway 61) and then he bridged the Folk gap with Country. Funny how in the 90's he had kind of a Folk revival with "World Gone Wrong".
Here's a great 1993 clip of him playing some trad Folk from Stephen Foster: http://www.youtube.com/watch?v=7OrXuqY19EE As for Uk... I have NO clue lol.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.