来攻 is read as らいこう (raikou) and means invasion.
らいこう
raikou
らいきゃくぜめ
flood of visitors
らいしゅう
(incoming) attack
らいひん
guest
らいえん
assistance
きしだい
as soon as (he, she, it) comes
らいせいき
next century
らいえつ
visiting and meeting someone (of higher status)
らいりん
attendance
らいおき
coming to Okinawa
らいきゃくすじ
customers
らいちょう
らいが
your coming