Compare the federations of coming together type and holding together type?

Coming Together Federation:
1. Under this, independent states come together on their own to from a bigger unit.
2. All constituents states usually have equal powers and the states enjoy certain amount of autonomy.
3. The main aim of the federation is to pool their sovereignty and maintain their seperate identity to
increase their security.
4. Some examples are USA, Australia, and switzerland.
Holding Together Federation:
1. Under this, a large country decides to divide its powers between the constituent units and the national government.
2. Under this, central government tends to be more powerful.
3. In this type of federation, there is an absence of pooling sovereignty and maintaining identity. increase their security.
4. Some examples are India Belgium and Spain.