How did they make Odysseus stop trying to get out of war?

Odysseus attempted to avoid the Trojan War by feigning madness, plowing his fields with salt instead of seeds. However, Palamedes exposed his ruse by placing his infant son, Telemachus, in front of the plow, forcing Odysseus to reveal his sanity to save the child. This clever tactic ensured that Odysseus was compelled to join the war, as he could not harm his son. Thus, he was ultimately drawn into the conflict against his will.