It is not a patent of the United States or Russia. Each country has its own conditions and can station troops with the consent of the other country. If the other country does not agree, no one can station troops.
Speaking of troops stationed around the world, according to the U.S. Department of Defense in November 2017, the number of U.S. troops stationed in the Western Pacific and Asia-Pacific exceeds 160,000 at most! The purpose of confronting North Korea in the short and medium term and preventing and containing China in the medium and long term is obvious. The region with the second largest number of troops stationed is Europe, with 34,812 troops, one-fifth of the number in Asia and the Pacific. The third largest military force is in the Middle East and North Africa, especially the oil countries. As the world's largest energy consumer for a long time, too many wars and military deterrence are behind the "black dollar" oil interests. At the bottom of the list is Africa. It can be seen that the United States sees relatively few economic interests in Africa.
In fact, these mercenaries come from companies approved by the US government, and the companies contract the US government's overseas security operations.
Next, let’s talk about Russia’s garrison. There are 7 Russian military bases, including two naval bases in Ukraine and Syria. In addition, there is an air force base located in Kyrgyzstan. Russia has about 40,000 troops stationed abroad, which is still far behind the United States' overseas troops.
In fact, China also has many military bases overseas, and there is an official Chinese naval base in Djibouti. The main purpose of China's military base here is to combat piracy. China is now mainly engaged in escort missions in the Gulf of Aden. Choosing to establish a military base here is not only to combat piracy, but also to ensure the safety of the property and lives of the North African people.
Garrisoning troops also benefits both sides. One side needs to ensure the safety of its own citizens, while the other side can also protect the security of other countries and combat illegal militants while making profits, so there is no garrison. Which country has the patent?