An interesting episode of the European adaption of arms and armour to the prevaling conditions was with the early North American colonists.
I can't find the source for this off hand -- one of my books -- so I'm a bit fuzzy on the whys and wherefores.
By then the firearm had supplanted the bow, and the cuirasses had developed to deflect the lead balls. In one demonstration of this to the local Indians, they discovered that while proof against balls, the cuirasses were not proof against the native arrows. I can't remember the reason for this off the top of my head, but it had to do with forging tailored for deflecting soft lead balls moving very fast; left it sufficiently brittle IIRC.
Show me a source for this.
No arrow can pierce the very best plate armor, i.e., armor "of proof".
However, munition-grade plate is a different story. There are references to "inferior plate" by Spanish conquistadores. These mutition plate armors were considered by the Spanish to be inferior (in terms of resisting arrows) to the native Indian corselets of quilted cotton and maguey fibers (ichcahuipiliis). The conquistadores thus adopted the native armor, which they referred to alternately as escaupillas (a corruption of the Indian word) or armas de la tierra ("arms of the country").
But again, munition-grade plate is no more representative of plate armor as a whole than armor "of proof" is. There was obviously a fairly broad range of quality.
In the later battles with the Indians the colonists fell back to using jack and brigadine, which was better against the arrows. In the account one fellow was described as looking like a porcupine.
In war, use what works.
Various combinations of quilted jacks, jacks-of-plate, brigandines, and maille were used by European colonists in the Americas.
Peace,
David



