tactical warning

English Thesaurus

1. (military) a warning after the initiation of a hostile act (noun.communication)

hypernym	:	warning,
definition	:	a message informing of danger (noun.communication)

hyponym	:	warning of attack,
definition	:	a warning to national policy makers that an enemy intends to launch an attack in the near future (noun.communication)

domain category	:	armed forces, armed services, military, military machine, war machine,
definition	:	the military forces of a nation (noun.group)