Answer:
While this is somewhat vague, you can take apart a statement by examining the context and meanings of the selected words. Forged generally means “created,” but with imagery of weaponry. This is also true for crucible. A crucible is associated with molten metal and other weaponry. Someone forged in the crucible of war may have been “hardened by the tests of wartime, or afflicted by the trials of war.” Hope this helps.