Why was barbed wire such a common thing on the battlefields during

Top 10 Barbed Wire Advantages

History Daily

Why didn't the Napoleonic Wars see mass use of barbed wire, like WW1? - Quora

Barbed wire - Wikipedia

How did soldiers repair broken or damaged barbed wire fences in World War 1? - Quora

Adventures in No Man's Land - BBC News

Barbed Wire with Battlefield. Stock Photo - Image of battle

Never before was so much of the world fenced off by barbed wire

老外：战场上的铁丝网是干嘛的？穿厚衣服可保平安吗？ - 壹读