As I said, there are three basic things you can do. First of all are heavy weapons, and I understand that you don't have a whole range of weapons as does, for example, the U.S. or Europe, but you have armoured vehicles like LAVs and UAVs. You have artillery round ammunition. You have howitzers. You have robotic demining systems, so we can clean our agricultural land of mines and shells.
That is very important because, with what they are doing now, it is possible to mine land at a distance of 100 kilometres or 80 kilometres. Russian troops, for example, are staying 80 kilometres from agricultural land and they can just send mines this distance, so they are purposely destroying our agricultural land.
What we need also are robotic demining systems. We also need help to restore, repair and build new grain storage and laboratories, which are very important because all our laboratories.... To export grain you need to take samples to laboratories. Our laboratories are mainly in the ports because we export 90% of all our grain and oil through the ports. Now we need to build a new chain of laboratories for our western borders in railway stations, on roads, for customs, so to speak. We need to build that from scratch because, as I said, we didn't expect that we would need it on the railways or roads. We had two seas.
Those are actually two things we need and you can help us with those, but heavy weapons are our priority. We clearly understand that we need to push them back from our territory and that's the only sustainable way for us to harvest, to take our harvest and to grow more to harvest in the next year to feed the world. They will always blackmail the whole world through agricultural crisis and fuel crisis, which they are doing now.
It's only a matter of time before they say they will close sea routes for two weeks and they will not allow the UN to come. They do that all the time with humanitarian corridors. I can tell you that the Russians didn't allow people in the city of Mariupol to take these people, our people, Ukrainian citizens, through humanitarian corridors or to bring food there from non-occupied Ukrainian territories.
As a result, more than 20,000 Ukrainians died in this city without food, water, medicine and without being evacuated, so what do you expect from these people, from Russians who are doing this in a Russian-speaking city basically? It was a Russian-speaking city very close to the Russian border, and they did this to Mariupol. I do not believe in any so-called temporary solutions with Russians. Either you defeat them or they will blackmail the whole world.