Suicide missions are not always well-received by the players. It really depends on how well you can convince your fellow nobles that this missions is really necessary. Quite a few people are proud of their troops, and don't appreciate when they are thrown away on a whim.
About two months ago, there was a huge debate and series of complaints about a battle that, after it happened, many of the nobles in the army thought was known to have been a suicide mission. Darka barely won the battle, but succeeded in wiping out a rather large CE army. Even though we won, we were mostly wiped out, too, and left to straggle home with our own broken army. I almost thought the army was going to revolt over that one.