Answer:
OSS stands for Office of Strategic Services
Step-by-step explanation:
The Office of Strategic Services (OSS) was the United States intelligence service during World War II. The OSS can be considered the precursor prototype of the Central American Intelligence, or CIA.
Prior to the creation of the OSS, the affairs of the intelligence service were divided between different departments of the United States government, without any coordination. Thus, for example, the army and navy used different codes to decipher secret messages. For that reason, President Franklin Delano Roosevelt worried about the deficiencies of the intelligence service of the United States, authorized the creation of an intelligence service. And so the OSS was born.