Can skill at chess really be a good judge of skill at warfare?

My brother told me that but I don't think it is true anymore. I mean, way back when when people lined up and fought this might of been true, but real warfare is more organic. You don't have neat, orderly set of rules. You have technology, amount of troops, intelligence of individual soldiers, and a whole lot of other things can affect warfare that has nothing to do with chess. So do you think what my brother says is true?|||Tell your brother to bring his chess board into warfare with him and see how long he lasts. Hes an idiot.|||your brother is 100% correct. a person who can think 2,3, or even 4 moves ahead has the advantage over another, A person who can visualize success will have a better chance at attaining it.|||Your brothers wrong if your a general nowadays you still gotta know what to do with your troops like in chess with knowing what to do with your pieces|||Yes it does. It is a game of strategy. Strategy is still needed in war, despite the massive amounts of weapons we have.