The phrase 'during the war' is correct and is commonly used in written English. For example, "The children were evacuated from London during the war."
shows during the war.
Teal was a pilot during the war.
What did you do during the war?
Served in the Navy during the war.
Lae was completely destroyed during the war.
He fled France during the war.
They met in Vietnam during the war.
He came close once, during the war.
Ireland was neutral during the war.
But that was during the war.
That was during the war.
Ludwig does not simply clarify my doubts with English writing, it enlightens my writing with new possibilities
Simone Ivan Conte
Software Engineer at Adobe, UK