What happens when we breathe? where does oxygen go?

When we breath the oxygen goes to our lungs for us to live and it goes though our circulatory system for our blood to move around

The truman doctrine was an american foreign policy whose stated purpose was to counter soviet geopolitical expansion during the cold war. it was announced to congress by president harry s. truman on march 12, 1947, and further developed on july 12, 1948, when he pledged to contain threats to greece and turkey