Why are crosses used as grave markers in overseas American military cemeteries instead of the tablet type used in US?

Crosses are used as grave markers in overseas American military cemeteries primarily to symbolize the sacrifice made by service members and to reflect the Christian heritage of many of those buried there. This choice aligns with the traditional use of crosses in European cemeteries, where many American soldiers are interred. The uniformity of crosses also emphasizes the collective nature of their sacrifice, serving as a powerful visual representation of honor and remembrance. In contrast, tablet markers are more commonly used in the U.S. for varied cultural and historical reasons.