single-engined aircraft against shipping targets. There is at present no evidence that such operation need be expected in the immediate future and in any case such operations, owing to the limited range of most of the aircraft likely to be employed, would be confined to forward battle areas. Sporadic attacks, however, by single aircraft might be made elsewhere if such aircraft as the Do. 335 or Ar.234 were employed B. JAPAN Forces available 6. No useful estimate of the forces available can be made since areas of attack will in the main be forward battle areas and will vary with strategic developments.