SYDNEY (Reuters) -Increasing the number of nuclear powered submarines operated by Australia, Britain and the United States will make the Indo Pacific more secure and was in the United States' interests, Australian Prime Minister Anthony Albanese said on Monday. Albanese will meet U.S. President Donald Trump for the first time on Tuesday in Calgary on the sidelines of the G7 meeting, with tariffs and Washington's snap review of the AUKUS treaty to transfer nuclear submarines to Australia weighing on the talks.