Germans also deployed four 17 cm cannon batteries as mobile coastal batteries on the Calabrian side of the strait. On 2 August the retreating 22nd Flak Brigade of the Luftwaffe arrived in Messina and took command of all Axis air-defense units. Maritime Military Sector Augusta-Syracuse The Maritime Military Sector Augusta-Syracuse was responsible for the harbors of Augusta and Syracuse, and the coast between Arenella (206th Coastal Division) to the South and Punta Castelluccio in Agnone Bagni (213th Coastal Division) to the North. Maritime Military Sector Augusta-Syracuse, in Augusta - Ammiraglio di Divisione Priamo Leonardi 121st Coastal Regiment CCXLVI Coastal Battalion, in Augusta CCCLXXXV Coastal Battalion, in Syracuse DIV Coastal Battalion, between Augusta and Melilli DXL Coastal Battalion, between Belvedere and Grottone 80th Artillery Battery 5x Blockposts CCCLXIX Territorial CC.NN. Battalion I Protection Battalion (Royal Italian Air Force unit at Seaplane Base Syracuse) 1x Royal Italian Navy battalion 5x Anti-paratrooper units 7th CC.NN. Maritime Artillery Legion 7th CC.NN. Maritime Artillery Legion 60th, and 63rd Coastal CC.NN. companies Augusta Sector Coastal Artillery Battery "Luigi di Savoia" (2x 203/50 naval guns) Coastal Artillery Battery "Biagio Assereto" (3x 152/50 and 1x 120/40 naval guns) Coastal Artillery Battery "Bozzo Gravina"(3x 152/50 and 1x 120/40 naval guns) Floating Battery "GM 216" (2x 190/45 naval guns, 2x 20/70 anti-aircraft guns) Floating battery "GM 239"(2x 149/47 and 1x 76/40 naval guns, 2x 20/70 anti-aircraft guns) Dual-role Battery "AS 269" (6x 102/35 naval/anti-aircraft guns) Dual-role Battery "AS 360" (6x 76/40 naval/anti-aircraft guns) Dual-role Battery "AS 361" (6x 102/35 naval/anti-aircraft guns) Dual-role Battery "AS 362" (6x 102/35 naval/anti-aircraft guns) Dual-role Battery "AS 363" (6x 76/40 naval/anti-aircraft guns) Anti-aircraft Battery "AS 364" (6x 76/40 anti-aircraft guns) Dual-role Battery "AS 383" (6x 102/35 naval/anti-aircraft guns) Anti-aircraft Battery "AS 416" (6x 76/40 anti-aircraft guns) Dual-role Battery "AS 561" (6x 102/35 naval/anti-aircraft guns) Anti-aircraft Battery "AS 592" (6x 102/35 anti-aircraft guns) Anti-aircraft Battery "AS 674" (6x 76/40 anti-aircraft guns) Dual-role Battery "AS 741" (6x 76/40 naval/anti-aircraft guns) Dual-role Battery "AS 896" (6x 76/40 naval/anti-aircraft guns) Autonomous Group "Siracusa", in Syracuse Coastal Artillery Battery "Opera A" (2x 381/40 naval guns) Coastal Artillery Battery "Emanuele Russo"(3x 152/50 and 1x 120/40 naval guns) Coastal Artillery Battery "Lamba Doria"(3x 152/50 and 1x 120/40 naval guns) Dual-role Battery "AS 309" (6x 76/40 naval/anti-aircraft guns) Dual-role Battery "AS 365" (6x 76/40 naval/anti-aircraft guns) Dual-role Battery "AS 493" (6x 102/35 naval/anti-aircraft guns) Dual-role Battery "AS 671" (6x 76/40 naval/anti-aircraft guns) Dual-role