Suikoden Playthrough (65) War Against the Northern Checkpoint

Turns out the military training is just a ruse, and the real objective was for Mathiu to take advantage of the intelligence leak and trick the enemy. We then capture the enemy, Griffith, and Mathiu proposes a plan to sneak into Kasim Hazil's castle and rescue Warren and Viktor while he acts as a prisoner of Griffith. But, how can Mathiu be so confident knowing that the reinforcements could wipe us out...? Ugh, we have to take Krin.