This is my first time tabulating a song, but it sounds nicer than other versions (on my 
guitar) which I have gone through. You have to be quick to change chords though. Enjoy :)

Verse:
Em (022000@1)             CDon't (x32010@1)try to explain your mind
                  D (xx0232@1)        GD
I know what's happening here
Em (022000@1)               COne (x32010@1)minute, it's love
                             D (xx0232@1)      GD
And suddenly, it's like a battlefield
Em (022000@1)             COne (x32010@1)word turns into a
               D (xx0232@1)                  G (320003@1)     DWhy (xx0232@1)is it the smallest things that tear us down
Em (022000@1)                CMy (x32010@1)world's nothing when you don't..
                 D (xx0232@1)             G (320003@1)      DI'm (xx0232@1)not here without a shield - can't go back, now
C (x32010@1)                G (320003@1)                 D (xx0232@1)           CBoth (x32010@1)hands tied behind my back for nothing...... oh, no
C (x32010@1)                   G (320003@1)              DThese (xx0232@1)times when we climb so fast to fall again
D (xx0232@1)                        CWhy (x32010@1)we gotta fall for it, now...



Chorus:
          G (320003@1)             DI (xx0232@1)never meant to start a war
D (xx0232@1)         Em (022000@1)        D (xx0232@1)  CYou (x32010@1)know I never wanna hurt you
            G (320003@1)                      DDon't (xx0232@1)even know what we're fighting for
          Em (022000@1)        D (xx0232@1)          C (x32010@1)            G (320003@1)            DWhy (xx0232@1)does love always feel like a battlefield, a battlefield, a battlefield
          Em (022000@1)                     C (x32010@1)            G (320003@1)            DWhy (xx0232@1)does love always feel like a battlefield, a battlefield, a battlefield
          EmWhy (022000@1)does love always feel like



Verse:
Em (022000@1)               CCan't (x32010@1)swallow our pride
                      D (xx0232@1)              GD
Neither of us wanna raise that flag.. mmmm
Em (022000@1)            CIf (x32010@1)we can't surrender
                        D (xx0232@1)               G (320003@1) DThen, (xx0232@1)we're both gonna lose what we have, oh, no
C (x32010@1)                G (320003@1)              D (xx0232@1)      Em (022000@1)CBoth (x32010@1)hands tied behind my back for nothing....oh, no
C (x32010@1)                   G (320003@1)             DThese (xx0232@1)times when we climb so fast to fall again
D (xx0232@1)                        CWhy (x32010@1)we gotta fall for it, now..



Chorus:
          G (320003@1)             DI (xx0232@1)never meant to start a war
D (xx0232@1)         Em (022000@1)        D (xx0232@1)  CYou (x32010@1)know I never wanna hurt you
            G (320003@1)                      DDon't (xx0232@1)even know what we're fighting for
          Em (022000@1)        D (xx0232@1)          C (x32010@1)            G (320003@1)            DWhy (xx0232@1)does love always feel like a battlefield, a battlefield, a battlefield
          Em (022000@1)                     C (x32010@1)            G (320003@1)            DWhy (xx0232@1)does love always feel like a battlefield, a battlefield, a battlefield
 Em (022000@1)    (........PAUSE........)   C (x32010@1)             G (320003@1)              DGuess (xx0232@1)you better go and get your armor (get your armor), get your armor (get your armor)
        Em (022000@1)                         C (x32010@1)             G (320003@1)              DI (xx0232@1)guess you better go and get your armor (get your armor), get your armor (get your armor)
        EmI (022000@1)guess you better go and get your



Bridge:
Am (x02210@1)                         D7We (xx0212@1)could pretend that we are friends, tonight (oh)
G (320003@1)                         C7And, (x32310@1)in the morning, we wake up, and we'd be alright
 F#m7 (131141@2)                        B7'Cause, (x21202@1)baby, we don't have to fight
    B (x2444x@1)                                   C (x32010@1)            GAnd (320003@1)I don't want this love to feel like a battlefield, a battlefield, a
Dbattlefield (xx0232@1)          Em (022000@1)                     C (x32010@1)            G (320003@1)            DWhy (xx0232@1)does love always feel like a battlefield, a battlefield, a battlefield
   Em   (.........PAUSE..........)   C
I guess you better go and get your armor...



Chorus:
C (x32010@1)       G (320003@1)             DI (xx0232@1)never meant to start a war
            Em (022000@1)       D (xx0232@1)      CYou (x32010@1)know I never wanna hurt you
            G (320003@1)                      DDon't (xx0232@1)even know what we're fighting for
          Em (022000@1)         D (xx0232@1)         C (x32010@1)            G (320003@1)            DWhy (xx0232@1)does love always feel like a battlefield, a battlefield, a battlefield
          Em (022000@1)                    C (x32010@1)            G (320003@1)            DWhy (xx0232@1)does love always feel like a battlefield, a battlefield, a battlefield
Em (022000@1)                     C (x32010@1)             G (320003@1)              DBetter (xx0232@1)go and get your armor (get your armor), get your armor (get your armor)
             Em (022000@1)          D (xx0232@1)       C (x32010@1)             G (320003@1)              DI (xx0232@1)guess you better go and get your armor (get your armor), get your armor (get your armor)