Wis. Const. art. V, § 4

The governor shall be commander in chief of the military and naval forces of the state. He shall have power to convene the legislature on extraordinary occasions, and in case of invasion, or danger from the prevalence of contagious disease at the seat of government, he may convene them at any other suitable place within the state. He shall communicate to the legislature, at every session, the condition of the state, and recommend such matters to them for their consideration as he may deem expedient. He shall transact all necessary business with the officers of the government, civil and military. He shall expedite all such measures as may be resolved upon by the legislature, and shall take care that the laws be faithfully executed.