Global Rivalries (2025): Countries That Hate Each Other

A Comprehensive Look at International Conflicts, Border Disputes, and Political Hostilities Around the World

Throughout the world, various nations share strained or hostile relationships shaped by history, politics, borders, religion, or ideology. India and Pakistan remain long-standing rivals due to partition, territorial disputes, and competing national identities, while India also faces tension with China over border conflicts. China’s strained ties with the United States reflect global rivalry, and its relationship with Taiwan is marked by Beijing’s claim over the island.

In the Caucasus, Armenia and Azerbaijan have fought over Nagorno-Karabakh. Iran and Saudi Arabia represent a deep sectarian and regional rivalry, while Israel and Palestine remain locked in a protracted struggle over land and sovereignty. North Korea and South Korea, divided since the Korean War, remain technically at war. Tensions also persist between Qatar and Saudi Arabia, Russia and Ukraine, Serbia and Kosovo, South Sudan and Sudan, Turkey and Greece, Japan and China, Ethiopia and Eritrea, and Morocco and Algeria. Uganda’s relationship with Rwanda has been marked by regional competition, and Venezuela and Colombia have frequently clashed diplomatically. Georgia, Poland, Lithuania, Latvia, Estonia, and Ukraine share hostile or distrustful relations with Russia.

Elsewhere, Japan and South Korea have historical grievances, France and the United Kingdom maintain an old rivalry, Cuba and the United States have decades of hostility, and Vietnam and China have an uneasy coexistence. Cambodia and Thailand have border tensions, and Egypt’s disagreements with Ethiopia stem from Nile River projects. Sri Lanka has struggled in its relations with China and India. Cyprus and Turkey remain divided, and Nigeria’s disputes with Cameroon over boundaries continue. Mali’s resentment toward France reflects colonial and military tensions. Mexico’s relationship with the United States remains complex, shared by Canada’s occasional friction with Washington. Kenya and Somalia have clashed over maritime boundaries, Morocco disputes Spanish control of Ceuta and Melilla, and the Democratic Republic of Congo accuses Rwanda of interference. Belarus and Poland, along with the Baltic states, face mutual distrust due to geopolitics and Russian alignment. Romania and Hungary dispute minority and border issues, while Serbia’s animosity toward Croatia and Kosovo stems from the Yugoslav wars.

Argentina disputes the Falklands (Malvinas) with the United Kingdom, Iraq has had major conflicts with the United States, and Syria remains in conflict with Turkey and Israel. Lebanon and Israel are adversaries, Indonesia has had friction with Australia and Malaysia, Malaysia with Singapore, and Bangladesh and Myanmar mutually accuse each other over refugee crises. Switzerland and France maintain minor but notable cultural tensions, while Finland, Norway, and Sweden remain wary of Russia. The Philippines, Bhutan, Thailand, Nepal, Mongolia, South Korea, Myanmar, and Vietnam all have contested or uneasy relations with China. Denmark and Germany share a historic rivalry, Italy and France periodically clash diplomatically, and Portugal and Spain maintain a centuries-old competition.

In South America, Brazil and Argentina, Chile and Peru, Bolivia and Chile, Ecuador and Peru, Uruguay and Argentina, and Paraguay and Brazil have had territorial and political disputes. Iran’s hostility extends toward Israel, Turkey, and Gulf states such as Saudi Arabia, Qatar, the UAE, Bahrain, and Oman. Yemen’s war with Saudi Arabia continues, while Iraq and Iran remain regional rivals.

Smaller states have their own conflicts: Panama and Colombia dispute maritime borders, Costa Rica and Nicaragua have recurring tensions, and Central American neighbors like Honduras, El Salvador, and Guatemala share long-standing rivalries. Greece’s historical disputes with North Macedonia persist despite recent normalization, and Bulgaria’s rivalry with Romania mirrors Eastern European competition. Hungary, Slovakia, and the Czech Republic have overlapping historical grievances, as do Germany, France, Italy, and Austria in Western Europe.

Successive links continue down the Balkans chain—Austria and Slovenia, Slovenia and Croatia, Croatia and Serbia, Serbia and Bosnia, and Bosnia and Croatia—all marked by nationalist and ethnic divisions. In the southern cone, Argentina and Chile have clashed, Brazil and Paraguay share river disputes, Chile and Peru remain tense, and Peru and Ecuador have fought border wars. Venezuela and Guyana have ongoing territorial claims, and Suriname and Brazil have periodic frictions. Across Africa, South Africa’s relationships with Zimbabwe and Namibia, Libya’s rivalry with Egypt, Sudan’s disputes with Egypt, and West African rivalries like the Ivory Coast and Liberia, Guinea and Sierra Leone, and Sierra Leone and Liberia all persist.

These numerous rivalries, whether rooted in colonial borders, ideology, religion, or resource competition, continue to shape global instability and regional politics.

Tanmoy Bhattacharyya

25th October 2025