ततः संधिमदूष्यं कारयेत् ॥ कZ_०५.६.११ ॥
tataḥ saṃdhim adūṣyaṃ kārayet
Thereafter, he should cause the alliance/compact to be rendered unworkable (corrupted/undermined).
To prevent hostile consolidation: weakening an enemy’s diplomatic cohesion reduces coordinated threat without immediate warfare.
Primarily yes—through inducements, misinformation, and engineered disputes—though administrative pressure can also be used where feasible.