21. Artillery and air power were unable to provide sufficiently effective close support to the infantry. 22. She remained with the carriers as they gave close support to the invasion forces ashore. 23. The sub-unit provides close support engineering to the 5th Battalion, The Rifles 35 Engineer Regiment. 24. The most difficult aspect of close support was communication. 25. It was developed in response to a military requirement for a multi-purpose close support weapon. 26. An excellent weapon for close support with a respectable range due to its rifled tube. 27. The group sailed from Norfolk 14 November to give close support to a Gibraltar-bound convoy. 28. Close support by the artillery now became possible.29. The infantry assault went forward without the Confederate artillery close support that had been originally planned. 30. Development of British doctrine added howitzer-armed close support tanks, similar to the older torpedo tank role.
