How To Introduce A New Kitten To An Older Cat?

– How to introduce a new kitten to an older cat?

How do you introduce a new kitten and an older cat at the same time? – Introduce a newborn kitten to an older cat how old is it when they can safely be together?

What is the best way of introducing my 2 cats before i move out in 3 months from today? – Introducing two kittens together in 12 days what would be the best age for that..i have a feeling they might fight..will there still be love between them when their 3 years old???my question is will my cats get along with one another after three years??and if so where should I keep them while im away since i cant leave them alone for many hours??thanks!!