Analysis: Ukraine has long sought to be part of talks about its future but plans for a Trump-Putin summit raise the specter that its leader will be frozen out of key negotiations.

Volodymyr Zelenskyy has said that Ukraine will not give up land to Russia, after Donald Trump suggested the "swapping of territories" would take place. Our security and defence analyst warns that Trump's team risks being out of their depth in negotiations with Russia.

The Aug. 15 summit will mark the first time the U.S. and Russia leaders will be together in person during President Trump's second term.