How did the americans mark the areas for artillery strikes during the battle of okinawa

Japanese military objects, despite being carefully disguised, were easily detected by comparing a series of sequentially shot images. Thus, the progress of construction of Japanese defensive structures was monitored, new artillery and mortar batteries, the location of reserves, wire and minefields were revealed. Pictures of the next military installations were immediately sent to the headquarters of divisions, corps and armies, as well as to artillery and flight units for the proper planning of artillery fire and air strikes. It was found that there are four operating aerodromes in Okinawa - Kaden, Matinato, Naha and Yontan, where Japanese fighters and transport planes land every night. March 31, 1945, the day before the start of the American offensive operation, Japanese sappers destroyed these airfields.

Explanation:

a governess was mean to her.

explanation: