Unrestricted submarine warfare, which became prominent in World War I, meant that submarines could sink any time of vessel at any time without warning. Before this, they had to surface first and place crews on lifeboats.
Explanation:
Lisa Gherardini, the real-life model who posed for Leonardo da Vinci's iconic painting, was pushed into a wedding with wealthy Florentine merchant Francesco del Giocondo.
<span>mobilization of the country's entire population and economy to produce the soldiers, food supplies, ammunitions and money necessary to win the war. </span>
The Housing and Urban Development Act of 1965 and the Fair Housing Act of 1968 were both aimed at "<span>c. improving housing and living conditions in cities," since during this time many housing complexes were very dangerous, and oftentimes segregated. </span>
Because Rome needed to be protected from neighboring Aequi who had surrounded the Roman army, and the council.