After the Meinertzhagen success, deceptions, which for the ordinary general were just witty hors d’oeuvres before battle, became for Allenby a main point of strategy. Bartholomew would accordingly erect (near Jericho) all condemned tents in Egypt; would transfer veterinary hospitals and sick lines there; would put dummy camps, dummy horses and dummy troops wherever there was plausible room; would throw more bridges across the river; would collect and open against enemy country all captured guns; and on the right days would ensure the movement of noncombatant bodies along the dusty roads, to give the impression of eleventh-hour concentrations for an assault. At the same time the Royal Air Force was going to fill the air with husbanded formations of the latest fighting machines. The preponderance of these would deprive the enemy for days of the advantage of air reconnaissance.