The timing was propitious, as black clouds had begun to roll up the valley and gather above them, the advance guard of a summer shower.
The capitan pasha left his anchorage in the Gulf of Patras with his fleet in a single line, without reserve or advance-guard.
On the 7th of March Napoleon fell upon the advance guard of this force at Craonne and drove it back upon Laon, where a battle took place on the 9th.
The Homeric Dorians of Crete were also interpreted by Andron and others (3rd century) as an advance-guard of this sea-borne migration, and as having separated from the other Dorians while still in Histiaeotis.
Before dawn on the 10th the advance guard of Turenne's army was ascending the Glotter Tal.