यात्रामभ्युत्थितो वा सेनामुद्योजयेत् ॥ कZ_०५.३.४२ ॥
yātrām abhyutthito vā senām udyojayet
When he has risen to undertake an expedition (yātrā), he should set the army in readiness and mobilize it.
The formal decision/commitment to a campaign (yātrā) obligates immediate organisational readiness and deployment preparation.