Investing.com -- The U.S. and its allies conducted their largest Rim of the Pacific maritime exercise to date, demonstrating deepening military cooperation amid concerns about China and North Korea, the Wall Street Journal reported. The U.S. Pacific Command conducts more than 100 joint exercises with regional partners each year. The Philippines sent its coast guard to Rimpac for the first time as it modernises its forces amid territorial tensions with China in the South China Sea. Greater spending on ships, missiles, radar systems and military communications could support demand for major American and allied defence contractors. Related articlesU.S. and allies display growing naval cooperation in Pacific drillsNvidia's new Alpamayo project: What it means for Tesla?