Nash fainted. Safilos sent him because he had a one-track mind and he definitely would not let Lex pass. He was one track minded and so, once he knew that he could not defend Fort Strand, he could not take it.
Fort Strand had five thousand garrisons, according to Nash's understanding. If Lex wanted to attack, no matter how strong her army was, she must at least have a one to one destruction ratio. Lex would not dare to pay such a price.
Who knew when he gathered a large numbers of troops at the west gate, something would happen to the east gate.
Gurney was eager to contribute and he had implications of risking his life to rush to the city. At that time, the mage that Lex sent to contact Daniel had yet to return.