/setblock: Places one block at a position, with options to keep or destroy what is there.
Syntax
<angle brackets> are required, [square brackets] optional. /setblock has 2 forms:
/setblock <position: position> <tileName: block> <blockStates: block_state_array> [oldBlockHandling: setblockmode]
/setblock <position: position> <tileName: block> [oldBlockHandling: setblockmode]