>bangladesh

Intervention to stop a genocide that too only after west pakistan attacked India first.

>sikkim

Referendum

>Goa

Emancipation of a colony after Portugal refused to grant freedom.

>pakistan

Dude Pakistan is the one who's started every single one of the wars! Even neutral sources agree on this.

>kashmir

Pakistan invaded kashmir first, and the Indian military only entered kashmir after the king signed the instrument of accession, thus legally making kashmir a state in the Indian union.

>china

Is that supposed to be a joke? China is the one who invaded Tibet in the first place! They were the ones who then invaded and captured parts of the state of Arunachal pradesh, claiming it as a part of South Tibet.