Lance - Then what unifying motives might the three and two armies have?
Gandalf hears of the Necromancer's plan to seduce Smaug and use him and the Goblins to control the North (referenced in Unfinished Tales, I believe) and therefore requests that the Men, Elves and Dwarves unite to defeat his plan and establish a strong buffer-state at Erebor (whilst he and the WC take on the parallel task of driving him out of DG)?
Gandalf hears of the Goblins' plan to wreak revenge on the North for the death of The Goblin King in the Misty Mountains and therefore requests that the Men, Elves and Dwarves unite to defeat them?
Gandalf hears of Bolg's plan to exact revenge on Thorin and prevent the establishment of Erebor and therefore requests that the Men, Elves and Dwarves unite to prevent such an outcome?
Oh, this is quite fun! I hope Petty's not reading, though ;-)
