Why did Netanyahu Sack his Defence Minister in Middle of a War?

Gallant’s sacking is particularly surprising given the context: Israel has been locked in intense fighting with Hamas since October 7th last year. Now it has also opened another front in the north with Hezbollah in Lebanon. Gallant, as defence minister, had been playing a central role in overseeing Israel’s military operations in Gaza. His removal, therefore, appears to be an unexpected and risky political gamble by Netanyahu