American support for Ukraine has a price tag: $500B worth of mineral riches, said U.S. President Donald Trump.

Ukraine’s government wants to restore the country’s frontier to where it was before Russia launched its first invasion more than a decade ago. The U.S. defense secretary said that was “unrealistic.” ...

The economic development of Ukraine, particularly in the agricultural ... trade barriers and enhance economic cooperation. This Nature Research Intelligence Topic summary is one of 30,000 created ...