A Front Line Twenty Kilometres Wide

> The proposals to end the war in Ukraine describe a strip of ground, and so do the officers holding the front. Kyiv wants to freeze the current front, Washington floated a buffer in Donbas and Moscow has refused both. Whether the depth of that front shapes a settlement or disappears the day the drones stop is a question the September talks have not yet had to answer.

In January 2025, just west of Pokrovsk, the ground neither army fully held was about a kilometre deep. A French volunteer who fought in that tree line now puts the same contested zone at five to eight times the width, while the front itself has barely moved. Near Kostyantynivka a Ukrainian drone battalion describes a grey zone that grew from three to five kilometres into fifteen or twenty. The general whose corps holds the northern approaches to Pokrovsk sets the zone of constant drone exposure at twenty to twenty-five kilometres on each side, and he expects thirty by December.

Those figures come from one side of the war. They also measure different things. A kill zone is the depth at which strikes land regularly, and a grey zone is ground where neither side can stop the other from operating. Military mapping specialists argue that a position under drone fire can still be held. The same volunteer recalls a wood shown as Russian on the public map while his team was dug in inside it.

This is the ground the diplomacy concerns. Steve Witkoff and Jared Kushner spent three hours with Vladimir Putin on 5 September and went on to Kyiv the next day, and the White House promised next steps within weeks. Kyiv's position is a ceasefire along the current front. Washington's contribution to a one-page plan drafted with Ukraine and European governments was a buffer in Donbas, a free economic zone under outside administration into which both armies would pull back. The Kremlin dismissed it on 25 August, saying no third party could administer what Moscow calls its own regions. Russia still demands all of Donbas.

The machinery for checking a truce was sketched in January. It would be led by the United States with European participation and built from drones, sensors and satellites. Drones are also what thickened the line into a strip.

Two readings fit the record. In the first, the strip belongs to the fighting and ends with it. Strikes stop, positions become visible and a working group settles the line the way the Donbas contact line was managed from 2015, disputed villages included, long before drones ruled the sky above it. In the second, the strip is the substance of any freeze. A ceasefire on the current front has to name which edge of twenty kilometres it means, and on a front now contested by small infiltrating groups, a claimed position can move without an army moving with it.

The obstacle on record today is political. Moscow rejects both the freeze and the buffer, and no text has been published. Talks may resume late this month, after Russia's Duma elections. A text fixing the line of troop deployment on the day of signature would take the first reading. One carrying a buffer or demilitarised strip of stated width would take the second.