I read earlier on Reddit that during the 19th century, the Connaught Rangers were the most "feared infantry unit in the world."

by ArkGuardian

I understand statements like these cannot be proven as fact, but is there any semblance of truth that a single infantry regiment had a reputation like this?

Follow up: During other time periods, are there any single infantry units that could have reasonable stake to this claim?

Searocksandtrees

Follow up: During other time periods, are there any single infantry units that could have reasonable stake to this claim?

Mod note: Just a reminder to anyone tempted to answer the follow-up question: answers must comply with subreddit rules, so do ensure that answers are in-depth and sourced. We're not looking for trivia and snippets of half-remembered factoids in this sub. Thanks!