have the GLs ever fought each other before

I was just wondering have the green lanterns fought each other before ik Kyle and Alan have and sinestro and hal but has sinestro fought the others or has Hal ever fought Kyle or john or guy dose anyoone know

@oceanmaster21: Hal and Guy fought each other during Green Lantern: Emerald Warriors #8 - War of the Green Lanterns, Part Three. Sinestro beat Kyle in H2H to without his ring in Green Lantern Corps #54 - The Weaponer, Part 2. Hal beat up Guy in pure H2H without his ring in Green Lantern #3 - Sound and Fury. Hal and John fought each other in Green Lantern: Mosaic #5 - The Child-Man and the Great White Hero. Kyle fought Parallax Hal Jordan in Green Lantern #0 - Second Chances. Kyle and John briefly fought each other Green Lantern Corps #58 - War of the Green Lanterns, Part Two.

@dondave: thanks i think i would bescrewed without you on here thanks mate:)