Chechnya is an internationally recognised part of the Russian Federation. It is not a seperate country. Kind of like what Texas is to the U.S or Hawaii
More like Hawaii that was taken in a bloody exterminating war against Muslim tribes (the Circassians), full of the worst Muslim fanatics on earth (the expat Chechens have a reputation in Afghanistan Pakistan and Syria). Chechnya is no vacation spot. It was an extremely unwilling part of the Russian empire since the days Tolstoy Pushkin and Lermontov wrote about it.