Isn't it interesting how war decorum has changed?

Isn't it interesting how war decorum has changed? 'Twas once the honorable thing to line up opposite your opponent, in full view and daylight, on an agreed upon field of battle. Once there, in full, bright, shiny regalia the armies could duke it out. Granted, there were exceptions (generally successful, but exceptions nonetheless). Even through part of this century sniping was considered a cowardly way by which to wage war. And of course, the Japanese attack on Pearl Harbor was..."dastardly" I believe.
Now, the objective is to strike without being seen...to literally sucker punch your opponent under cover of darkness. And those who once fought in a manner most despised (antecedents to our special forces/snipers) are now among the military and society's most revered.

Technology changes everything. The Civil War saw the first really modern military technology with exploding shells, more accurate rifles, etc. They continued to fight by old methods, massing huge armies across from each other in wide open fields, almost always with disastrous results.

Didn't take long for tactics to change. No more dressing up in your Sunday Best to salute your enemy on the field. More recently, I think covert action is being realized as more efficient, like business trying to do more with less manpower. And with the annihilative sorts of weapons there are now there's little point in making any pretense about being gentlemanly about war anymore. Now the game is played to win, period.