Board Thread:General Discussion/@comment-61.173.72.175-20160724045322/@comment-61.173.72.175-20160724113826

Cersei's two possible targets were Sansa Stark and the Sand Snakes of Dorne while not seeing Danearys as her true threat. Cersei wanted Sansa dead for Joffrey's murder and the Sand Snakes were directly responsible for Myrcella's death.

I hope Danearys' army would keep the Lannisters busy while Jon Snow held the North's defense against the White Walkers.

Anyway, it would be possible for the Tyrells to pledge for Danearys' cause.