You can also click the Add layer mask icon at the bottom of the Layers panel (which, by default, selects Reveal All). Note that if you already have a layer mask on the layer, this icon will change to Add vector mask. Or you can click the Add a Layer Mask icon in the Properties panel.
The top American ace of all time, the U.S. Ace of Aces was Richard Ira Bong. He shot down 40 Japanese planes in the Pacific. Over the years, there's been a lot of ink spilled about the relative scores of German and American aces. 27 Americans shot down over 20 enemy planes.
Deeper American involvement in Vietnam was now highly anticipated. On February 13, 1965, President Johnson approved Operation Rolling Thunder â a sustained campaign of aerial bombardment against the North Vietnam.verview. During the Operation Rolling Thunder, U.S. aircraft had flown more than 300,000 sorties and dropped about 643,000 tons of bombs on North Vietnam. Due to operational circumstances, more than 900 U.S. aircraft were lost, 745 crewmen was shot down.