You will need to find courses/test to meet the area of study below. I have filled in a few courses from straighterline that I know of to get you started, hopefully others will help too.
The info can be found here: Bachelor's Degree in International Studies at Thomas Edison State University
Area of Study: International Studies
48 credits of liberal arts courses in international areas with no more than 6 credits at the 100 level and at least 18 credits at the 300 or 400 level
A. Required Courses
Western Civilization I (3) - Straighterline
Western Civilization II (3) - Straighterline
Foreign Language (6) - possibly Spanish from Straighterline
World Geography (3)
International Relations (3)
Conflict in International Relations (3)
Capstone (LIB-495) (3) - TESU
B. Global Electives Choose 12 credits from these courses.
Cultural Anthropology - Straighterline
Elements of Intercultural Communication - CSU-Global
International Economics
Global Environmental Change -TESU course Global Environmental Change
Global Issues
World Literature
Nonwestern Literature
International Politics
Cultural Diversity - UExcel
Terrorism - Penn Foster course
Comparative Religions
World Religions: Exploring Diversity - DSST/SL/Study.com
Cultural Anthropology, Religion + Global Environmental Change (TESU) = 12 credits
C. Regional Electives Choose 12 credits from these courses.
Geog of E. Europe and Russia
Latin American History
Intro to Chinese History & Culture
African History & Culture
American Foreign Relations
The Middle East
History of Russia - History of the Soviet Union??? (DSST)
Third World Studies
African Literature
Modern European Governments
Government and Politics of Asia
Eastern Religions
Western Religions
The info can be found here: Bachelor's Degree in International Studies at Thomas Edison State University
Area of Study: International Studies
48 credits of liberal arts courses in international areas with no more than 6 credits at the 100 level and at least 18 credits at the 300 or 400 level
A. Required Courses
Western Civilization I (3) - Straighterline
Western Civilization II (3) - Straighterline
Foreign Language (6) - possibly Spanish from Straighterline
World Geography (3)
International Relations (3)
Conflict in International Relations (3)
Capstone (LIB-495) (3) - TESU
B. Global Electives Choose 12 credits from these courses.
Cultural Anthropology - Straighterline
Elements of Intercultural Communication - CSU-Global
International Economics
Global Environmental Change -TESU course Global Environmental Change
Global Issues
World Literature
Nonwestern Literature
International Politics
Cultural Diversity - UExcel
Terrorism - Penn Foster course
Comparative Religions
World Religions: Exploring Diversity - DSST/SL/Study.com
Cultural Anthropology, Religion + Global Environmental Change (TESU) = 12 credits
C. Regional Electives Choose 12 credits from these courses.
Geog of E. Europe and Russia
Latin American History
Intro to Chinese History & Culture
African History & Culture
American Foreign Relations
The Middle East
History of Russia - History of the Soviet Union??? (DSST)
Third World Studies
African Literature
Modern European Governments
Government and Politics of Asia
Eastern Religions
Western Religions
TESU: Capstone completed 
Study.com: Classroom Management, Differentiated Instruction (6)
Patten: Academic Strategies, Child Growth and Development, Reading, Writing, and Research, Social Psych, Lifespan Development, American Government (18)
Shmoop: Drugs in Lit, Holocaust Lit, Poetry, Lit in the Media, Modernist Lit, Shakespeare's Plays, Western Lit, Women's Lit, British Lit, Euro History (30)
SL: Cultural Anthropology, English Comp I, English Comp II, Biology, Intro Comm, Environmental Science, Philosophy, C++, Religion (27)
TEEX: Cyber Security for Business Professionals, Cyber Security for Everyone, Cyber Security for IT Professionals (6)
Sophia: Art History, Psychology, Sociology, Visual Comm, Dev Teams (13)
ALEKS: Beginning Algebra, Intermediate Algebra, College Algebra, Statistics, Trigonometry (15)
NFA: Fire Service Supervision, Community Safety Educators (2)
Kaplan: Documenting Experiences (3)
ACTFL: Reading Proficiency Test (6)
CPCU: Ethics (2)
Study.com: Classroom Management, Differentiated Instruction (6)
Patten: Academic Strategies, Child Growth and Development, Reading, Writing, and Research, Social Psych, Lifespan Development, American Government (18)
Shmoop: Drugs in Lit, Holocaust Lit, Poetry, Lit in the Media, Modernist Lit, Shakespeare's Plays, Western Lit, Women's Lit, British Lit, Euro History (30)
SL: Cultural Anthropology, English Comp I, English Comp II, Biology, Intro Comm, Environmental Science, Philosophy, C++, Religion (27)
TEEX: Cyber Security for Business Professionals, Cyber Security for Everyone, Cyber Security for IT Professionals (6)
Sophia: Art History, Psychology, Sociology, Visual Comm, Dev Teams (13)
ALEKS: Beginning Algebra, Intermediate Algebra, College Algebra, Statistics, Trigonometry (15)
NFA: Fire Service Supervision, Community Safety Educators (2)
Kaplan: Documenting Experiences (3)
ACTFL: Reading Proficiency Test (6)
CPCU: Ethics (2)
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