Global peace more challenging during pandemic: PM Prime Minister Sheikh Hasina. File photo UNB, Dhaka UNB, Dhaka Prime Minister Sheikh Hasina today said ensuring global peace has become far more challenging than in the past due to the Covid-19 pandemic. "With coronavirus, rapid spread of technology, and advancement of time, new elements of threats have emerged," she said. The Prime Minister was speaking at the closing ceremony of 'Exercise Front Runner of Peace-2021', from her official residence Gono Bhaban. On the occasion of the birth centenary of Father of the Nation Bangabandhu Sheikh Mujibur Rahman and the golden jubilee of independence, a multinational exercise -- organised by Bangladesh Army -- was held at Bangabandhu Cantonment in Ghatail, Tangail from April 4 to 12.