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:

abraham lincoln, according to anyone who was connected with agriculture, represented the worst of northern politicians. shortly after lincoln was elected, south carolina seceded from the union. they along with other southern states, retained their anger. in a way, it was their own fault: the democrats were split in the south. some wanted slavery to be extended in other states that were about to join the union and some didn't want it badly enough. lincoln had a solid backing from his party: the republicans were united in not wanting slavery to be expanded.