SurrenderDorothy
Banned
Not technically though. The Greyjoys, and the Tyrells aren't her armies though, but rather the forces of her allies. Her own personal forces haven't been defeated yet.
What's RR? I'm talking specifically about Lyanna and Rhaegar's relationship. Robert has told everyone that would listen that Rhaegar kidnapped Lyanna, and we know that's not true. Sure those two running off together helped start the war, but I don't for a moment believe they thought the chain of events that occurred to initiate a war was going to happen like that.
Now I don't know why they never bothered to send ravens after they ran off though, because that part is weird.
As ignorant as Robert was, he wasn't the only one to believe that Lyanna was kidnapped. Their secret marriage attests to that, many believe she was kidnapped. While many in the 7 kingdoms also attest to Rhaegar's honour and believe there was more to the tale.
Although I was salty about Rhaegar discarding his old heirs in favour of his future child(Jon), I understand there is more at play and he must have a reason.
Robert, Eddard and thousands of others didn't, as far as they knew she vanished with the Dragon prince and was unheard of for months.
With regards to Dany's battles, yeah you're right. Her own armies are undefeated so the braids make some sense then. But there is the question of the Unsullied at Casterly Rock.