Before Seth could ask anything, Arwen looked at him and continued: "And we certainly don't want to destroy that barrier, just to enter their territory by force."
Seth swallowed his incoming words back and decided to keep hearing her. He was about to say they could forcefully break that barrier up and enter their frontal gates by kicking them open, but he felt Arwen apparently knew some things that he didn't. However, their team would be composed of three very powerful individuals and he felt that they had an enormous advantage over the enemy already. An advantage big enough that they could pretty much do whatever they wanted; however, things were not so simple.
Arwen turned to look at everyone present in that room and after analyzing the "players", she quickly formed a small plan with what they had.