Australian Stocks Close Higher as SPASX 200 Gains 069 US Defense Policy Shifts Raise Questions for NATO Allies and Defense Sector SP 500 Edges Higher as Healthcare and Tech Lead Communication Services Lags Tech Giants Pledge Up to 500 Billion for US AI Infrastructure in White House Announcement Amazon Reports RecordBreaking Thanksgiving Holiday Week with Surge in Sales and Items Sold Micron Reaches 1 Trillion Market Cap Milestone Amid AIDriven Memory Shortage Trump Mobile Investigates Data Exposure of 27000 Potential Customers