KYIV (Reuters) – Ukraine’s border authorities said that Polish truck drivers who had been blocking three crossings on the Polish-Ukrainian border lifted their blockade at two of them on Tuesday. “Today, Polish strikers unblocked the Korczowa-Krakowiets checkpoint. As of this hour, about 300 trucks are queuing to enter Ukraine from the Polish side,” the customs service said on the Telegram messaging app. Later the border service said protesters had halted their blockade at the Rava-Ruska crossing. “Registration and passage of freight vehicles across the border in both directions is going ahead …