I think it's hard to overestimate how much more visibility events of the last 20 years have on a global scale, and how much smaller the events that become visib

I think it's hard to overestimate how much more visibility events of the last 20 years have on a global scale, and how much smaller the events that become visible are. Even looking from the first half of the 20th century (mostly world war-related conflicts: dam bombings etc) to the end of the second half: > A report suggests that proposals were made at a meeting > of fundamentalist groups in Tehran, under the auspices of > the Iranian Foreign Ministry, to poison water supplies of > major cities in the West Even if the second thing happened in 1924, we might never have known about it. Looking at this list, I think some of the frequency is also exacerbated by the increasing centralization of water supply, especially as more of the world develops. If everybody is a subsistence farmer with a well and the aquifer is running dry there will be conflicts, but those conflicts will be on a much smaller (less historically notable) scale than "Country X is threatening Country Y's water supply".