Donald Trump leads the USA. He signs a new law. The law brings new Sanktionen against Russia. Sanktionen are strict rules. They stop Russia in the war.
The law punishes firms and politicians. Russia sells oil and gas. Russia makes much money. Trump now punishes buyers of oil.
Ukraine gets help to buy Waffen. The USA gives money for defense. Ukraine gets better air protection.
Dmitri Medwedew is angry. He works in Russia. He threatens the USA with military power.