During the War of the Five Kings, under the regency of Lady Lysa Arryn after the death of Jon Arryn, the Vale followed a strict policy of neutrality until the very last stages of the conflict and was thus able to keep its resources and army, the formidable knights of the Vale, nearly intact. The young Lord Robin Arryn, under the wing of the manipulative Lord Protector Petyr Baelish, consented to join the war when they came to the aid of their old allies of House Stark in their campaign to retake Winterfell and the North from House Bolton at the Battle of the Bastards. In the aftermath of the battle, the lords of the Vale and the North hailed Jon Snow, bastard of House Stark, as the King in the North, thus seceding from the sovereignty of the Iron Throne and joining the Kingdom of the North until Jon pledged himself to Daenerys Targaryen during her invasion. Robin chose to recognize Bran Stark as the new king after her assassination.
The Vale soldiers are outfitted with silver plated armor with possible chainmail beneath, adding further protection to the wearer. Furthermore, they are equipped circular or kite-shaped shields emblazoned with House Arryn's moon-and-falcon sigil. The armor is often accessorized with blue or white cloaks resembling a falcon's wings. This design, while not aesthetically impressive, is symbolic since the Vale soldiers are often referred to as the "knights of the Vale". The design also provides practicality in warfare with the combination of wool and steel plates allowing considerable protection and mobility for the wearer. This makes them nimbler than other soldiers who might be wearing heavy plates of armor, while retaining the defensive properties of armor. Vale infantry helmets are comparable to Northern helm's in terms of appearance with the lack of cheek guards and intricacy in design.
Who Are The Knights Of The Valel