In 1941 the Japanese needed oil for their war machine, and if it wasn't forthcoming from the US, then the Japanese would just seize it by conquest. That oil that they needed was in the Netherland East Indies. JAVA SEA 1942 explains the naval victories that made that invasion possible.
If one cracks open a book and looks at a map that shows the extent of the Japanese conquest at its height one will see much of the Pacific as well as Asia under their control. The funny thing is, most of that conquest came quickly at the beginning of the war while the liberation of those territories and islands dragged on for years. Why? The book explains many reasons. A big part of it was underestimating Japanese capabilities as well as Allied blunders.
Like other books in this series, there were plenty of photos, order of battle (units), and maps.
I learned some interesting facts. The maximum range of an 8in. naval gun was 32,153 yards. A US torpedo had a range of about 13,000 yards. The Japanese Type 93 torpedo had a range of 43,746 yards! This secret weapon was fast too, at about 36 knots, and because it was fueled by oxygen, it didn't leave a wake. One torpedo hit was enough to sink a ship.
Before closing I think it a fitting tribute to mention the brave little USS Edsail (DD-219). As ordered, this lone destroyer was making a run for it when it ran into the Japanese. It took 84 minutes for the Japanese to finally sink her. Two battleships fired 297 14in. and 132 6in. shells at her and two heavy cruisers fired 844 8in. and 62 5in. shells. It was the 17 Japanese dive bombers that sealed her fate. Eight survivors were pulled from the water, but sadly, they were all beheaded when once ashore.