In war, decisive battles did not happen over time. Only a short battle could decide what side won or lost over that battlefield. A battle that lasted only a scant few hours could decide how the rest of a war was handled.
It was this ideology that Vera hoped to implement by staking so many assets against the capital of Rivera, Nylenor. She knew the defenses of the capital quite well. After all, she had grown up there, and before her mother was assassinated, she had toured Rivera quite often.
Of course, Vera did not expect her forces to just steamroll over the prodigious defenses of the greatest Empire in the world. She had been making plans for this move for many years. Several critical posts had been taken over by her subordinates, and it was through those posts that she would be able to deal a decisive blow to the defenses of capital, thereby allowing the forces of the rebels to cut straight through them like a hot knife through butter.