Parents' sacrifices in WWII

I just finished another book on WWII and this one got me to thinking. Could you give up your kids for what would be indeterminate time to keep them safe? That’s what so many on Guernsey Island, part of the Channel Islands, as well as many Londoners had to do during the war. (There are probably other places where they had to do this as well but I haven’t read about that yet) Many times they had as little notice as 24 hours. This was the case on Guernsey as the Germans had bombed and now were going to come and occupy the island for what turned into 5 years. The majority sent their children off on the one and only ship going to England where they would be farmed out to families in the countryside hoping that was safer than the big city or an occupied island. It’s hard to put yourself into their places, I know, but imagine what a huge sacrifice that was. WWII had many hardships but this one has got to rank near the top.