Those warnings were backed by proof. In 1921, Mitchell helped organize bombing tests in which Army aircraft repeatedly struck and ultimately sank the captured German battleship Ostfriesland, ...
https://siris-libraries.si.edu/ipac20/ipac.jsp?&profile=liball&source=~!silibraries&uri=full=3100001~!57736~!0#focus ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results