sentences:  In his memoirs, John Munson stated that if the objective was simply "to annoy the enemy," they succeeded.In discussing as Mosby's "greatest piece of annoyance", the Greenback Raid in which Mosby's men derailed a train and captured a $170,000 payroll from the paymasters of Philip Sheridan's army (each of the 80 raiders received a $2100 share, though Mosby himself took nothing), Munson says that due to Mosby's comparatively tiny force 
  ... [i]t was necessary for the Federal troops to guard every wagon train, railroad bridge and camp with enough active and efficient men to prevent Mosby from using his three hundred raiders in one of his destructive rushes at any hour of the day or night..