Before revision: According to Kenneth Waltz, "The defeat of defection of a major ally would have shaken the balance, each state was constrained to adjust its strategy and the use of its forces to the aims and fears of its partners."
After revision: According to Kenneth Waltz, "The defeat or defection of a major ally would have shaken the balance, each state was constrained to adjust its strategy and the use of its forces to the aims and fears of its partners."