11. The main German defence line was now seven miles away. 12. Continuous battle was to be replaced by step-by-step advances, through successive German defence lines . 13. At the start of the war, the opposing troops remained behind their own defence lines . 14. This gave the Belgians more time to mobilize their army and strengthen their defence lines . 15. By the end of the week the tigers stationed themselves in their previous defence lines . 16. The Japanese and Italians in the Fu were driven back to their last defence line . 17. The government then attempted to open a third front along the Muhamalai Forward Defence Line . 18. Des Bruslys hesitated between a direct assault and a defence line to contain the British. 19. He is sent to a nearly completed defence line . 20. The Defence Line has survived largely intact and was named a World Heritage Site in 1996.