Black Sea Grain Initiative (2022-2023)
Turkey and the United Nations brokered a deal allowing Ukraine to export grain from Black Sea ports despite Russia's naval blockade. It moved millions of tons of grain over about a year.
Grain exports resumed and the deal was extended multiple times, easing global food prices.
Russia withdrew in July 2023 citing unmet conditions, and exports halted. It showed functional humanitarian deals are possible in this war but fragile.
Like the grain deal, the Oleshky truce is a narrow humanitarian carve-out in a broader war, brokered by a third party with both sides' cooperation. Its fragility is the central test.
