The United States is one of NATO's 12 founding members, in an alliance of 32
Background
NATO's own list of member countries names the United States among the 12 founding members.
The same list records the United States' accession year as 1949.
The United Kingdom is named with the United States among the founders.
At present, NATO has 32 member countries.
India is not a NATO member.
Founding members:
12
Current members:
32
US accession year:
1949
Why it matters for exams: NATO membership numbers and founding members are standard questions on military alliances.
Kerala PSCUPSCSSC
In plain words
NATO North Atlantic Treaty Organization — The North Atlantic military alliance in which the United States is a founding member.