Sorry for the long hiatus between posts!
TL;DR version: Amnesia and bad continuity have left Wonder Woman unsure of her abilities, so she asks the JLA to monitor her next 12 missions to make sure she's still fit for duty.
This issue, it's Green Lantern's turn to observe. Take equal parts Twilight Zone and Dr. Strangelove, add a dash of Renaissance Faire, and you get Wonder Woman #214, "Wish Upon A Star!" (approx. 6 pages worth of panels from a 20-page story)
Diana Prince takes United Nations delegate Lord Rosewater out to lunch at "Henry's Pub", a faux-British theme restaurant run by a sleazy character named Henry Tudor. Hal (Green Lantern) Jordan follows discretely behind:
Diana winning the prize was no coincidence, as GL found out later:
The landlord gets mowed down by the delivery truck bringing more ducks, thus fulfilling both their wishes. Tudor realizes that Diana must have the other wishing charm (which turns out to be the star-shaped gem in her tiara), and contrives to put her in a position to make another wish, so he can follow suit:
Lord Rosewater is summoned back to the U.N., where a crisis is developing:
Communications systems all over the world are failing, so they can't recall the wayward bomber, and even the Justice League are incommunicado.
Meanwhile, Henry Tudor, disappointed that his wish didn't seem to do anything, goes about his business:
Diana, as Wonder Woman, hops in her invisible jet and goes to intercept the bomber plane:
She makes it on board, but falls victim to her classic weakness:
Luckily, she has an ace up her sleeve:
(I don't think this "super-persuasion" power was ever seen before or since, although I guess you can hand-wave it away as an extension of her "Beauty of Aphrodite")
Harv sets her free, but...
With nuclear war averted, everything goes back to normal, including Green Lantern's ring. He rescues Tudor from the bank vault and confiscates his magic amulet. If there had been a nuclear war, Tudor would have been safe in the vault...making him the de facto "King of the World" after everyone else on Earth was dead.
And what did Diana wish for? GL suspects it was to pass her test and be readmitted to the JLA. He figures she's earned it.