carry the message to Garcia

verb2

1. •
   (old-fashioned) To perform a requisite task despite obstacles.

   • ... its demand being for men who could face difficult decisions and achieve results, who could "carry the message to Garcia" without delay or dallying. — 1922
2. •
   (old-fashioned) To perform a requisite task without having been informed specifically by what method to do so.

   • ...do it when you are told once. That is to say, carry the Message to Garcia! — 1932