Ukraine and Russia wrapped up their second day of US-led talks in Abu Dhabi without ending the war. Both sides agreed to swap 157 prisoners of war each, a rare positive result from the meeting. Steve Witkoff, Donald Trump’s special envoy, warned, "significant work remains," indicating more hurdles ahead. The talks, lasting three hours on Thursday, followed a five-and-a-half-hour trilateral session on Wednesday. Kyrylo Budanov, head of Ukraine’s presidential office, called the talks "genuinely constructive" and thanked the US and UAE for mediating. Russia’s Kirill Dmitriev said there was "progress" and "forward movement." Ukraine’s President Volodymyr Zelenskyy said peace talks will continue soon. Senior military and intelligence officials attended, showing more seriousness compared to earlier talks. US Secretary of State Marco Rubio said, "For the first time in a very long time, technical military teams from Ukraine and Russia are meeting." He added, "Progress is unlikely to become clear... until a genuine breakthrough is achieved." However, peace chances seem slim. Moscow demands Ukraine cede the entire eastern Donbas region, a demand Ukraine rejects. Kyiv wants a ceasefire along the current front and refuses to pull back its forces unilaterally. A big question is whether Russian President Vladimir Putin will compromise. Putin claims Russia is winning and may prolong fighting if Ukraine rejects his harsh conditions, which include limits on Ukraine’s military and banning Western troops. Russia’s warfare slowed in cold weather and tough Ukrainian defense but it continues attacking Ukraine’s energy systems, causing blackouts and worsening the humanitarian crisis. Kyiv and its allies say Moscow aims to break civilian morale.