This is very high on my bucket list. As a European what is the political situation to visit Baikonur? Is it just leased ground as a military base but Kazakhsta

This is very high on my bucket list. As a European what is the political situation to visit Baikonur? Is it just leased ground as a military base but Kazakhstan is sovereign? Or is it similar to an embassy ground and you are technically stepping into Russian Federation territory by visiting the launch site?