Ukraine is doing everything it can to clear its territory of landmines and other explosive remnants of war but needs the support of its partners, Deputy Prime Minister Yulia Svyrydenko said on Thursday. Svyrydenko was speaking at an international conference on mine clearance in Lausanne, Switzerland, also attended by Ukrainian Prime Minister Denys Shmyhal. Large areas of Ukraine are contaminated by hundreds of thousands of mines, cluster munitions and unexploded ordnance left behind by Russian and Ukrainian forces in combat zones. The conference brings together representatives from around 50 c…