As the Ukraine crisis continues, NATO says it will take whatever steps are necessary to increase the security of its allies.<br /><br />It claims it has seen no sign of Russian troops withdrawing from the Ukrainian border.<br /><br />Arriving in Estonia for a two-day visit, NATO Secretary-General Anders Fogh Rasmussen said that defence plans could be revised.<br /><br />“We are now considering further steps to further re-enforce our collective defence and those further steps might include updated defence plans, new defence plans, enhanced exercises and also appropriate deployments,” he said. <br /><br />NATO has been massing its troops in southern Poland – with American, Canadian and Polish paratroopers taking part in exercises. <br /><br />The alliance accuses Moscow of using special forces in the separatist takeover of mainly Russian-speaking eastern Ukraine.
