assiege
/əˈseɪdʒ, əˈsizʒ/Definitions
1. noun
A siege or the act of besieging a place, especially a fortified one.
“The enemy army laid siege to the city for several months.”
2. verb
To besiege or surround a place, especially a fortified one, with the intention of capturing it.
“The rebels assieged the government forces in the city.”