International Efforts to Secure Peace in Ukraine
Zelenskyy urges Putin for a full ceasefire in open letter.
Russian air strikes killed 7, including an attack on a Kyiv food plant.
Ukrainian military intercepted 198 of 216 long-range drones and two missiles.
Leaders discuss Coalition of the Willing, a 25-country multinational force initiative.
Merz says dialogue is open but needs Putin's willingness.
Zelenskyy is concerned about Trump's distraction by Iran.