By Trevor Hunnicutt WASHINGTON (Reuters) -Tensions brewing in Asia's trade-rich waters top the agenda as U.S. President Joe Biden welcomes leaders from Australia, India and Japan to his Delaware hometown for a diplomatic push to counter China in the waning months of his presidency.

President Joe Biden is spending the final months of his term tightening the screws on China, capping an approach that has seen him carry out a difficult juggling act in office to counter the world’s second largest economy.