Azure Load Balancer’s Global tier is a cloud-native global network load balancing solution. With cross-region Load Balancer, you can distribute traffic across multiple Azure regions with ultra-low latency and high performance. Azure cross-region Load Balancer provides customers a static globally anycast IP address. Through this global IP address, you can easily add or remove regional deployments without interruption.
Documentation: Learn more about cross-region load balancer
Read the announcement blog.