Danish Major General Michael Lollesgaard arrived in Yemen's capital Sanaa on Thursday to take his job as the new chief the redeployment coordination committee which is tasked with overseeing a ceasefire in the western port city of Hodeida.
UN Secretary General Antonio Guterres chose Lolesgaard to replace Dutch General Patrick Cammaert on Thursday.
Spokesperson for Guterres, Stéphane Dujarric, said after the UN Security Council approved Lollesgaard's appointment that Lollesgaard, the Denmark's representative to the NATO, has a 30-year experience in the military service at national and international levels.
During 2015 and 2016, he served as commander of the UN Multidimensional Integrated Stabilization Mission in Mali.
Cammaert tendered his resignation on January 22, a week after his convoy came under fire in Hodeidah. Sources said at the time Houthi forces were responsible for the attack on the convoy.
Earlier, diplomatic sources claimed disagreements between Cammaert and UN envoy for Yemen Martin Griffiths were behind his resignation.
Yemen has been battered by a four-year civil conflict which broke out after the Iran-backed Houthi Group had ousted the government of internationally recognised president Abdrabbuh Mansur Hadi.
The conflict escalated after a Saudi-led coalition launched a bombing campaign in March 2015 in order to restore the government, resulting in the world's worst humanitarian crisis.
The ceasefire in Hodeida, the main lifeline for millions, was agreed by the warring parties during UN-sponsored peace consultations in Sweden in early December.
The warring parties have been trading accusations over obstructing implementation of the deal since it came into effect on January 18.
Yemen has been racked by an armed conflict that broke out after the Iran-backed Houthis had ousted the internationally recognized government late in 2014.
The conflict escalated after a Saudi-led coalition intervened militarily in the country in March 2015 to reinstate the government of President Hadi, leaving tens of thousands killed, hundreds of thousands injured, and 3 million displaced and pushing the country to the world's worst humanitarian crisis, according to the UN, with more than two thirds of the 28-million population in need for a type of humanitarian aid and immediate protection, including 8.4 million people unsure how to get next meal, and some 2 million children suffering severe shortage of nutrition.