
Headcanon~

It was hard for Jack to live through World War II. He couldn’t stop anything, could only sit and watch as the world fought against each other and tore each other apart. It made him angry, made him mad, and in his frustration he made the world so much colder than he should have. He hurt himself again, and in the process hurt others. Europe was cast over in darkness and cold.
But the day he set foot at Auschwitz in 1942 — the death and hopelessness, the destruction. It was almost too much for him. His eyes were opened to the fact that humanity could be so cold, so much colder than he even was. That someone would murder people like this, that someone would find joy in this — it sickened him, saddened him, cut him to the core.
He brought the coldest winter to Russia when the Nazis attacked the Soviet Union. The cold was his best weapon against the Armies of Hitler and the Third Reich.
He saw a lot of things, felt a lot of things… in the years between 1939-1945.