They will probably lose. God wants to win this war, this is why obedience is better than sacrifice. We must obey God's will. If we don't obey, there won't be any unity with God and we cannot win. We must overcome difficulties during the struggle.
Difficulties always come with conflict.
The enemy suffers as well though, so the side which perseveres most will win. We must obey God's will and mobilize everyone for the struggle. I recently discovered that out of 72 couples, only 41 wives went out for 21-day witnessing. This means that 31 didn't. I don't know what reason they have.