Based on the provided search results, here are some recommendations for sweet and affectionate military-themed novels set in different eras:
1. "重生之軍婚甜蜜寵" (Rebirth of Sweet Military Marriage): This novel follows the story of a female protagonist who is reborn and enters into a sweet and loving marriage with a military man.
2. "七零之改嫁死對(duì)頭" (Remarrying the Arch-Enemy in the 70s): Set in the 1970s, this novel tells the story of a female protagonist who is reincarnated and experiences a heartwarming romance with a military officer.
3. "漂亮美人海島養(yǎng)娃[七零]" (Beautiful Woman Raising Children on the Island [70s]): This novel features a female protagonist who becomes a beautiful woman on an island and enters into a marriage with a military officer, raising children together.
4. "七零夫妻養(yǎng)娃日常" (70s Couple Raising Children Daily): Set in the 1970s, this novel portrays the daily life of a couple who are raising children together after getting married.
5. "六零再婚夫妻" (Remarried Couple in the 60s): This novel revolves around a military marriage in the 1960s, where the couple raises children together and finds happiness despite their differences.
Please note that these recommendations are based on the limited information provided in the search results. It is advisable to read reviews or summaries of these novels to determine if they meet your preferences.