The cheap reproduction pictured below, resembles a basic blade design that was found on battlefields throughout the world from before recorded history, all the way through the middle ages, and consceeds second place only to the spear as THE weapon of choice among anchient warriors.
The Greeks called them "Spatia", the Romans "Gladius", but over the millenia, I'm sure blades such as this, many of not any better, and more likely even worse quality, have been used to spill the blood of more people than Nuclear weapons! If one was to modernize the design, what would you use/change? What would be the best steel, handle material, etc.... to forge a MODERN weapon of similar design that you knew would be employed by field troops to do everything from chop and hack their way through jungles, to sharpen pikes, dig trenches, pry open barracaded doors, pierce the light armor of their enemies, and still survive the elements and abuse, to fight another day?

The Greeks called them "Spatia", the Romans "Gladius", but over the millenia, I'm sure blades such as this, many of not any better, and more likely even worse quality, have been used to spill the blood of more people than Nuclear weapons! If one was to modernize the design, what would you use/change? What would be the best steel, handle material, etc.... to forge a MODERN weapon of similar design that you knew would be employed by field troops to do everything from chop and hack their way through jungles, to sharpen pikes, dig trenches, pry open barracaded doors, pierce the light armor of their enemies, and still survive the elements and abuse, to fight another day?