▁capture ▁the ▁mort ar ▁positions . ▁The ▁main ▁Canadian ▁force ▁then ▁crossed ▁the ▁Slo ed am ▁and ▁established ▁a ▁beach head ▁on ▁the ▁Wal ch eren ▁end . ▁Operation ▁Inf atu ate , ▁the ▁capture ▁of ▁Wal ch eren , ▁was ▁about ▁to ▁commence . ▁ ▁References ▁ ▁Category : Build ings ▁and ▁structures ▁in ▁M idd el burg ▁Category : D ams ▁in ▁the ▁Netherlands ▁Category : W al ch eren ▁Category : Z uid - Be vel and <0x0A> </s> ▁The ▁Rand ▁Grand ▁Prix ▁was ▁a ▁motor ▁race ▁held ▁at ▁various ▁circ uits ▁in ▁South ▁Africa . ▁The ▁first ▁event ▁took ▁place ▁in ▁ 1 9 3 7 ▁but ▁it ▁was ▁not ▁held ▁regularly ▁until ▁the ▁ 1 9 6 0 s , ▁when ▁it ▁was ▁run ▁to ▁Formula ▁One ▁rules ▁and ▁formed ▁part ▁of ▁the ▁non - Ch ampion ship ▁calendar . ▁At ▁that ▁time ▁it ▁represented ▁an ▁annual ▁warm - up ▁race ▁before ▁the ▁South ▁African ▁Grand ▁Prix . ▁ ▁Results ▁▁ ▁R aces ▁shown ▁with ▁a ▁p ink ▁background ▁indicate ▁non - Form ula ▁One ▁races . ▁ ▁Category : Form ula ▁One ▁non - Ch ampion ship ▁races <0x0A> </s> ▁The ▁Oh m ▁( older ▁A mana ) ▁is ▁a ▁river ▁in ▁H esse , ▁Germany . ▁ ▁It ▁is ▁a ▁right ▁trib ut ary ▁of ▁the ▁L ahn . ▁Its ▁total ▁length ▁is ▁. ▁The ▁Oh m ▁origin ates ▁in ▁the ▁Vog els berg ▁Mountains , ▁east ▁of ▁the ▁town ▁Ulrich stein . ▁It ▁flows ▁generally