At least 2(obviously) but no SECRET alliance is good with more than 4 or 5. A regular alliances can have what ever amount.
46 chromosomes are needed to create a human
The alliance between Germany, Italy, and Japan
about 100,000,000,000
1
The alliance between Germany, Italy, and Japan
2 ponts to create an S curve
The Triple Alliance, formed in 1882, consisted of three countries: Germany, Austria-Hungary, and Italy. At the time, the combined population of these nations was approximately 85 million people. However, it's important to note that Italy left the alliance in 1915 during World War I, which altered the dynamics of the alliance.
To create a plane, infinitely many. But to uniquely define one, 3 are enough.
it needed at least 2
A minimum of 2 people are needed to play poker.
210
To create a plane, infinitely many. To uniquely determine a plane, just three.