apersonorgroupofpeoplethat is the first to do somethingconsidereddifficultordangerous,especiallyagroupofsoldiers, etc. who are the first toenterabattlearea:
Aircraftcarriersandtheirbattlegroupshaveservedas theleadingedgeof the USmilitary- "thetipof thespear," as theadmiralslike to say.
He has been theself-appointedtipof thespearin thefightagainstillegalimmigration.
"Artists need to be thetipof thespearin this newdigitalworldwe aremovinginto," he says.