The United States has several rival countries, with notable tensions existing primarily with China and Russia. The rivalry with China centers around economic competition, military expansion in the Asia-Pacific region, and issues related to trade practices and technology. Relations with Russia are strained due to conflicts over Ukraine, cybersecurity threats, and geopolitical influence. Other notable rivals include Iran and North Korea, primarily due to concerns over nuclear proliferation and regional stability.
Argentina
western and communist countries formed rival military alliances (Novanet)
It has always been Spain, from the creation of the two countries to football/soccer.
no-man's land.
The U.S.S.R.
Uni Soviet
Germany. lots of countries had that as their enemy in world war 2.;)
Victoriano Huerta (1850-1916) was such rival.
Soviet Union
The Germans, the Japanese, the Italians.
The main rival of the US after World War 2 is the US. US has had many problems inside its own country. I mean there is so much bad stuff happening to the US like the economies problem. There is also the fact that the your dad is a gay man.
{| |- | The rival was the Soviet Union. It began as the US and Soviets divided up responsibility for policing the defeated Axis countries. It escalated when the Soviets developed nuclear weapons. |}