The U.S. Department of State offers several scholarship programs to promote educational and cultural exchange between the United States and other countries. These programs are primarily designed for international students wishing to study or gain experience in the U.S. Here are some notable opportunities:
1. Fulbright Foreign Student Program
The Fulbright Foreign Student Program enables graduate students, young professionals, and artists from abroad to study and conduct research in the United States. Operating in more than 160 countries, approximately 4,000 foreign students receive Fulbright scholarships each year. The program covers tuition, airfare, a living stipend, and health insurance. Eligibility and application procedures vary by country, so it’s essential to consult the Fulbright Commission or U.S. Embassy in your home country for specific details. http://foreignfulbrightonline.org
2. Ambassador Scholarship Fund for Summer Work and Travel Program
This scholarship offers students the opportunity to gain professional and English language experience in the United States during the summer. Participants work in seasonal, entry-level jobs and engage in cultural exchange activities. The program provides a stipend to assist with expenses. Eligibility criteria and application processes are specific to each participating country. For instance, the U.S. Embassy in Moldova provides such scholarships.http://md.usembassy.org
3. Education USA Resources
While the U.S. Embassy itself may not offer direct scholarships, EducationUSA, a U.S. Department of State network of international student advising centers, provides comprehensive information on scholarship opportunities offered by U.S. universities, colleges, and other organizations. They assist students in navigating the application process and exploring various funding options. http://educationusa.state.gov
Application Process
Application procedures, eligibility requirements, and deadlines vary by program and country. It’s crucial to consult the U.S. Embassy or Consulate in your home country or the specific program’s official website for the most accurate and up-to-date information. Be cautious of unofficial sources and ensure that all information is obtained from legitimate government or educational institution websites.
For Nigerian students, the U.S. Embassy & Consulate in Nigeria provides information on available scholarships and programs. It’s advisable to visit their official website or contact their offices directly for detailed guidance. 
Remember, pursuing studies in the United States requires careful planning and adherence to application timelines. Start the process early to ensure all requirements are met.