Well if you are talking about your doggy, when they have been in pain for a while, it is freeing for them to not be suffering anymore.

There is nothing like puppy breath, just saying, there is precious out there with your name on it.
On to the next great adventure, what better than a companion that loves you unconditionally.
It will be a different adventure but wonderful as well.

So sorry for you pain here.

If you are being metaphoric, I sure hope we can REALLY clean them all out, leaving nothing that even could think about following in their footsteps.
It will take some time to rebuild everything, and we should pray for those that we will lose, as well as those who have lost their family and fens.
War is painful and there are always losses, but this will be the freedom that this planet has really never ever experienced before.