Ukraine's spring offensive could yield "modest gains", documents say A cache of classified US documents leaked online sheds new light on American intelligence gathered about other countries. Images of the covert files have appeared on messaging app Discord since early March. Complete with timelines and dozens of military acronyms, the documents, some marked "top secret", paint a detailed picture of the war in Ukraine and also offer information on China and allies. Pentagon officials are quoted as saying the documents are real. BBC News and other news organisations have reviewed the documents and these are some of the key findings....