Kyiv strike, $40tn U.S. debt and an mRNA cancer trial — 20 August 2026

Three stories shaping the global morning on 20 August 2026.

Russian ballistic missiles struck Kyiv overnight, killing at least three people and injuring 20. The attack damaged homes, warehouses and a children's hospital, while parts of the capital lost power. 1

U.S. government debt passed $40 trillion for the first time. Higher long-term Treasury yields tend to raise rates on mortgages, car loans and business credit. 2

Moderna and Merck said their personalised mRNA treatment helped melanoma patients live longer without the cancer returning or spreading than Keytruda alone. The companies have not yet released the full survival data. 3