Complex sentence: Fireheart wonders if ThunderClan would be ready if Tigerclaw attacked as many of the cats are still shocked about Tigerclaw's disloyalty, and many warriors are badly injured.
Split into simpler sentences: Fireheart wonders if ThunderClan would be ready if Tigerclaw attacked. Many of the cats are still shocked about Tigerclaw's disloyalty, and many warriors are badly injured.