The "walls" are most likely referring to The Wall, which is the big ass wall at the top of Westeros. It's a giant was of ice and... other wall like stuff (I have no imagination, sue me), which shields the Seven Kingdoms from the wastelands of the north, where the Others reside.
Furthermore, the Wall's purpose is to keep the aforementioned Others from invading, so the placement of "Walls they fall" right before "When the march of the others begins" strenghten the connection.
Furthermore, the Wall's purpose is to keep the aforementioned Others from invading, so the placement of "Walls they fall" right before "When the march of the others begins" strenghten the connection.
@ToSirius
The "walls" are most likely referring to The Wall, which is the big ass wall at the top of Westeros. It's a giant was of ice and... other wall like stuff (I have no imagination, sue me), which shields the Seven Kingdoms from the wastelands of the north, where the Others reside.
Furthermore, the Wall's purpose is to keep the aforementioned Others from invading, so the placement of "Walls they fall" right before "When the march of the others begins" strenghten the connection.
Furthermore, the Wall's purpose is to keep the aforementioned Others from invading, so the placement of "Walls they fall" right before "When the march of the others begins" strenghten the connection.