ron ▁of ▁the ▁R N AS ▁had ▁flow n ▁to ▁Ost end , ▁for ▁air ▁reconna issance ▁sort ies ▁between ▁Bru ges , ▁Gh ent ▁and ▁Y pres . ▁British ▁mar ines ▁land ed ▁at ▁D unk irk ▁on ▁the ▁night ▁of ▁ ▁and ▁on ▁ 2 8 ▁September ▁occupied ▁L ille . ▁The ▁rest ▁of ▁the ▁brig ade ▁occupied ▁Cass el ▁on ▁ 3 0 ▁September ▁and ▁sc out ed ▁the ▁country ▁in ▁motor ▁cars . ▁An ▁R N AS ▁Arm oured ▁Car ▁Section ▁was ▁created , ▁by ▁fitting ▁vehicles ▁with ▁bullet - proof ▁steel . ▁On ▁ 2 ▁October , ▁the ▁Marine ▁Brigade ▁was ▁moved ▁to ▁Ant werp , ▁followed ▁by ▁the ▁rest ▁of ▁the ▁Naval ▁Division ▁on ▁ 6 ▁October , ▁having ▁land ed ▁at ▁D unk irk ▁on ▁the ▁night ▁of ▁ ▁From ▁ ▁the ▁ 7 th ▁Division ▁and ▁the ▁ 3 rd ▁Caval ry ▁Division ▁land ed ▁at ▁Ze ebru g ge . ▁Naval ▁forces ▁collected ▁at ▁D over ▁were ▁formed ▁into ▁a ▁separate ▁unit , ▁which ▁became ▁the ▁D over ▁Pat rol , ▁to ▁operate ▁in ▁the ▁Channel ▁and ▁off ▁the ▁French - Bel g ian ▁coast . ▁ ▁Ant werp ▁was ▁inv ested ▁to ▁the ▁south ▁and ▁east ▁by ▁German ▁forces ▁after ▁ 2 0 ▁August , ▁while ▁the ▁main ▁German ▁arm ies ▁ch ased ▁the ▁French ▁and ▁British ▁over ▁the ▁border ▁south wards ▁to ▁the ▁Mar ne . ▁Belg ian ▁forces ▁in ▁Ant werp ▁tried ▁to ▁assist ▁the ▁French ▁and ▁British ▁with ▁sort ies