The Blackrock Debt Strategies Fund Inc (DSU) is a mutual fund that focuses on investing in debt securities, such as bonds and loans, to generate income for its investors. It is managed by Blackrock, one of the largest investment management firms in the world. The fund aims to provide a steady stream of income while also seeking to preserve capital and manage risk. It may invest in a variety of debt instruments, including corporate bonds, government bonds, and mortgage-backed securities. The DSU fund may be suitable for investors looking for a conservative fixed-income investment option.