The United States has about 150,000 troops at an estimated 800 military bases in some 80 nations. Russia may have as many as 40 bases in 9 countries that are mostly former Soviet Republics; but Russians do have bases in Syria and Vietnam. No other nation has more than ten foreign bases.
Mikhail Gorbachev renounced the Soviet empire by allowing non-Russian republics and east European satellites to be free, ending the Cold War. Although President H. W. Bush and his Secretary of State Baker promised Gorbachev they would not expand NATO to the east at all if Germany was allowed to reunify, subsequent Presidents Clinton, Bush II, Obama, and Trump increased the NATO alliance by adding Poland, Hungary, and the Czech Republic in 1999, Bulgaria, Estonia, Latvia, Lithuania, Romania, Slovakia, and Slovenia in 2004, Albania and Croatia in 2009, and Montenegro in 2017.
The US also has bases in Afghanistan, Australia, Bahrain, Belgium, Brazil, Diego Garcia, Cuba, Curaçao, Djibouti, Germany, Greece, Greenland, Honduras, Iceland, Israel, Italy, Japan, Kosovo, Netherlands, Niger, Norway, Oman, Philippines, Portugal, Qatar, Saudi Arabia, Singapore, South Korea, Spain, Syria, Tunisia, Turkey, United Arab Emirates, and the United Kingdom. The annual cost to American taxpayers of the foreign bases has been estimated at $22 billion by the Pentagon, at $250B by economist Anita Dancs, and between $100-150B by author David Vine.
The Chinese have often accused the US of “hegemony,” and other critics call it “imperialism.” The US uses these bases to project power around the world which is covered by regional commands and so has taken on the role of policing the world. Yet every US President admits that this is done in the name of the “national interest” without admitting that this is notdone to establish justice or world peace.
I recommend bringing home these troops while negotiating diplomatically and encouraging the United Nations to expand its peacekeeping functions which it has carried out with many successes since 1946. As a neutral world authority the UN can act as nonviolently as possible to resolve international conflicts.