Photo from UNIAN

According to the published info graphics, 5,000 construction workers from 20 Ukrainian regions were involved in constructing fortifications, while 35,000 railway carts with building materials were sent to the area.

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As noted, 300,300 kilometers of fortifications and 12,000 of concrete constructions have been erected in the shortest period.

As UNIAN reported earlier, President of Ukraine Petro Poroshenko promised that nearly all fortifications of the first and second defense lines would be put into operation by mid-July.

"By mid-July, all objects that we have planned must be put into operation. The only thing that at certain areas in the first line of defense it is impossible to carry out construction, as they are under [enemy] fire," said Poroshenko.

According to the president, the approximate cost of the project of fortifications in Donetsk region is about UAH 1 billion.