the.com/vanguard

The front of the army that finds out where the landmines are.

means The leading position in a movement, field, or trend — the people or ideas pushing furthest ahead of everyone else.

from From Old French 'avant-garde,' literally 'fore-guard' — avant (before) plus garde (guard). It entered English through military use describing the troops who marched ahead of the main force, then drifted into general metaphor for anyone out front in politics, art, or ideas. The art-world cousin 'avant-garde' kept the French spelling; 'vanguard' is the older, more anglicized half of the same split.

origin
French avant-garde, literally advance guard
risk
first to meet the enemy, first to retreat
irony
now means a boring index fund company
usage
everyone claims it, few actually lead
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