Serhii Tyschenko, a Ukrainian combat medic, spent 472 days in a bunker. His case appears to be an extreme example of a problem that has long plagued Kyiv’s military. By Cassandra Vinograd and ...

Nathan Reiff has been writing expert articles and news about financial topics such as investing and trading, cryptocurrency, ETFs, and alternative investments on Investopedia since 2016. Robert Kelly ...

Carol M. Kopp edits features on a wide range of subjects for Investopedia, including investing, personal finance, retirement planning, taxes, business management, and career development. David is ...