I was watching a show on the American war of independence, and saw battles between the American and British forces being fought in this way. Many battles in that era seem to have been fought with this weird protocol where the two sides stood in rows and patiently loaded their guns taking turns shooting at each other.

我正在看一档关于美国独立战争的节目,看到美国和不列颠军队之间的战争就是这种方式。那个时代的很多战争似乎都是以这种奇怪的规则进行的,双方站成一排,耐心地装枪,轮流向对方射击。

why would anybody agree to this way of fighting? Were there instances of the fighting starting out this way, but ending in a free-for-all?

为什么会有人同意这种战斗方式?有没有这样的例子:以这样子开打,最后却打成混战?