ATHENS, Greece (AP) — Americans marked a Memorial Day like no other as the coronavirus pandemic upended traditional commemorations and forced communities to honor the nation's military dead with smaller, more subdued ceremonies like car convoys instead of parades. On the weekend that marks the unofficial start of summer, U.S. authorities warned beach-goers to heed social-distancing rules to avoid a resurgence of the disease that has infected 5.4 million people worldwide and killed over 345,000, including nearly 100,000 Americans, according to a tally by Johns Hopkins University. Elsewhere, Greece sought to revive its crucial tourism sector by restoring ferry services to its popular Aegean islands, and Japanese Prime Minister Shinzo Abe lifted a coronavirus state of emergency in Tokyo and four other remaining areas. Abe also looked ahead to the Tokyo Olympics, saying development of effective drugs and vaccines will be essential to holding the event next year, after the pandemic forced postponement of the 2020 games. In New York City, fallen military members were honored with car convoys and small ceremonies this year rather than parades to conform with lockdown restrictions. “It’s something we’re upset about, but we understand,” said Raymond Aalbue, chairman of the United Military Veterans of Kings County, which usually puts on a parade in Brooklyn. There’s “no reason to put anybody in harm’s way,” he said, adding “it’s really cutting quick to the heart of all the veterans.” Veterans, along with nursing home residents, have made up a significant portion of those who died in the U.S.