The bases in Guam are particularly important because of their strategic location and play a unique role for the U.S. in its Asia-Pacific strategy.

Source: https://247wallst.com/special-report/2023/04/05/the-oldest-us-military-base-outside-the-country-was-built-in-1899/

The bases were also made bigger, shrinking the distance between bags by 4 1/2 feet.

Source: https://federalnewsnetwork.com/sports-news/2023/03/cubs-marcus-stroman-commits-mlbs-1st-pitch-clock-violation/