Human shielding is neither decisive nor effective in all situations. Fears that state armies are unable to fight shields are unfounded. Human shields are only effective when guerrillas can bring large numbers of civilians to shield targets of less than overwhelming military significance.

Can you use a body as a shield?

"My Body as a Shield" can only be used against effects that will destroy monsters at that time. You cannot use "My Body as a Shield" against cards whose effects might or might not destroy a monster right away, such as "Earthshaker", "Barrel Dragon", "Acid Trap Hole", or "Time Wizard". ...

Did the Japanese use human shields?

During the Battle of Okinawa and the Battle of Manila, Japanese soldiers often used civilians as human shields against American troops.