I don't know if it is a Flemish, Belgian, or international action, but on Flemish TV (primetime news on the biggest channel!), they showed a very sad Smurf cartoon made for Unicef. It has the Smurfs dancing in the village to the Smurf tune, but then bombs start falling down, the village is destroyed, many Smurfs are lying still, and Baby is crying and lonely.
It is very sad, and gives the impression of the horor of war for children (and adults of course). Not the happiness and joy we associate with Smurfs, but more poignant for that reason.